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Product Image of 7/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
7/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048078
K-Flex
SKU: 6RXLO048078
Brand: K-Flex
(177)
$10.98 each
BOX UP & SAVE 10%
$355.68 box of 36
$9.88 each
In Stock
Get 407 by Thu, Aug 20
In Stock
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Product Image of 3/4" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
3/4" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048068
K-Flex
SKU: 6RXLO048068
Brand: K-Flex
(177)
$9.97 each
BOX UP & SAVE 10%
$403.65 box of 45
$8.97 each
In Stock
Get 1,353 by Thu, Aug 20
In Stock
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Product Image of 3/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
3/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048038
K-Flex
SKU: 6RXLO048038
Brand: K-Flex
(177)
$6.78 each
BOX UP & SAVE 8%
$437.50 box of 70
$6.25 each
In Stock
Get 652 by Thu, Aug 20
In Stock
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Product Image of 5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048058
K-Flex
SKU: 6RXLO048058
Brand: K-Flex
(177)
$8.34 each
BOX UP & SAVE 10%
$390.00 box of 52
$7.50 each
In Stock
Get 519 by Thu, Aug 20
In Stock
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Product Image of 1-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048118
K-Flex
SKU: 6RXLO048118
Brand: K-Flex
(177)
$12.14 each
BOX UP & SAVE 10%
$273.25 box of 25
$10.93 each
In Stock
Get 200 by Thu, Aug 20
In Stock
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Product Image of 3/4" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
3/4" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048068
K-Flex
SKU: 6RSR048068
Brand: K-Flex
(10)
$11.97 each
BOX UP & SAVE 8%
$495.00 box of 45
$11.00 each
In Stock
Get 427 by Thu, Aug 20
In Stock
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Product Image of 1/2" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1/2" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048048
K-Flex
SKU: 6RXLO048048
Brand: K-Flex
(177)
$7.85 each
BOX UP & SAVE 8%
$375.44 box of 52
$7.22 each
In Stock
Get 69 by Thu, Aug 20
In Stock
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Product Image of 7/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
7/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048078
K-Flex
SKU: 6RSR048078
Brand: K-Flex
(8)
$13.79 each
BOX UP & SAVE 10%
$471.96 box of 38
$12.42 each
In Stock
Get 386 by Thu, Aug 20
In Stock
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Product Image of 373 Brush Top Adhesive (1 Pint)
373 Brush Top Adhesive (1 Pint)
SKU: 800-373-PTB
K-Flex
SKU: 800-373-PTB
Brand: K-Flex
(3)
$21.69 each
BOX UP & SAVE 8%
$478.80 box of 24
$19.95 each
In Stock
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In Stock
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Product Image of Elastometric Insulation Tape
Elastometric Insulation Tape
SKU: 800-EL-018
K-Flex
SKU: 800-EL-018
Brand: K-Flex
(4)
$16.64 each
BOX UP & SAVE 8%
$183.72 box of 12
$15.31 each
Out of Stock
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Out of Stock
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Product Image of 1-3/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048138
K-Flex
SKU: 6RXLO048138
Brand: K-Flex
(177)
$13.97 each
BOX UP & SAVE 12%
$246.00 box of 20
$12.30 each
In Stock
Get 554 by Thu, Aug 20
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Product Image of 7/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
7/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO068078
K-Flex
SKU: 6RXLO068078
Brand: K-Flex
(28)
$16.75 each
BOX UP & SAVE 8%
$323.61 box of 21
$15.41 each
In Stock
Get 135 by Mon, Aug 24
In Stock
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Product Image of 1-5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048158
K-Flex
SKU: 6RXLO048158
Brand: K-Flex
(177)
$14.58 each
BOX UP & SAVE 8%
$241.56 box of 18
$13.42 each
In Stock
Get 99 by Thu, Aug 20
In Stock
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Product Image of 1/2" x 3' x 4' Insul-Sheet, 12 Sq. Ft
1/2" x 3' x 4' Insul-Sheet, 12 Sq. Ft
SKU: 6RSX3X4048
K-Flex
SKU: 6RSX3X4048
Brand: K-Flex
(1)
$39.43 each
BOX UP & SAVE 6%
$444.72 box of 12
$37.06 each
In Stock
Get 76 by Thu, Aug 20
In Stock
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Product Image of 1/4" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
1/4" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX068028
K-Flex
SKU: 6RX068028
Brand: K-Flex
(177)
$6.29 each
BOX UP & SAVE 8%
$231.20 box of 40
$5.78 each
In Stock
Get 223 by Thu, Aug 20
In Stock
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Product Image of 7/8" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
7/8" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX048078
K-Flex
SKU: 6RX048078
Brand: K-Flex
(177)
$6.52 each
BOX UP & SAVE 8%
$228.00 box of 38
$6.00 each
In Stock
Get 209 by Thu, Aug 20
In Stock
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Product Image of 1-1/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-1/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100118
K-Flex
SKU: 6RXLO100118
Brand: K-Flex
(70)
$27.60 each
BOX UP & SAVE 8%
$279.29 box of 11
$25.39 each
In Stock
Get 318 by Thu, Aug 20
In Stock
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Product Image of 2-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
2-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048218
K-Flex
SKU: 6RXLO048218
Brand: K-Flex
(177)
$17.29 each
BOX UP & SAVE 8%
$270.30 box of 17
$15.90 each
In Stock
Get 581 by Thu, Aug 20
In Stock
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Product Image of 1-1/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-1/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO068118
K-Flex
SKU: 6RXLO068118
Brand: K-Flex
(28)
$16.92 each
BOX UP & SAVE 8%
$233.55 box of 15
$15.57 each
In Stock
Get 77 by Thu, Aug 20
In Stock
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Product Image of 7/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
7/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100078
K-Flex
SKU: 6RXLO100078
Brand: K-Flex
(70)
$25.48 each
BOX UP & SAVE 10%
$298.09 box of 13
$22.93 each
In Stock
Get 310 by Thu, Aug 20
In Stock
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Product Image of 2" Foam Insulation Tape, 75'
2" Foam Insulation Tape, 75'
SKU: 800-TAPE-TITAN-2
K-Flex
SKU: 800-TAPE-TITAN-2
Brand: K-Flex
(3)
$25.76 each
In Stock
Get 13 by Thu, Aug 20
In Stock
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Product Image of 7/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
7/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX068078
K-Flex
SKU: 6RX068078
Brand: K-Flex
(177)
$10.23 each
BOX UP & SAVE 8%
$197.61 box of 21
$9.41 each
In Stock
Get 198 by Thu, Aug 20
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Product Image of 7/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
7/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
SKU: 6RXL038078
K-Flex
SKU: 6RXL038078
Brand: K-Flex
(75)
$7.39 each
BOX UP & SAVE 8%
$326.88 box of 48
$6.81 each
In Stock
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Product Image of 3/4" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
3/4" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX068068
K-Flex
SKU: 6RX068068
Brand: K-Flex
(177)
$8.90 each
BOX UP & SAVE 8%
$196.80 box of 24
$8.20 each
In Stock
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Product Image of 3-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
3-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048318
K-Flex
SKU: 6RXLO048318
Brand: K-Flex
(177)
$31.76 each
BOX UP & SAVE 8%
$233.76 box of 8
$29.22 each
In Stock
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Product Image of 1-1/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
1-1/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048118
K-Flex
SKU: 6RSR048118
Brand: K-Flex
(6)
$15.40 each
BOX UP & SAVE 8%
$368.42 box of 26
$14.17 each
In Stock
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Product Image of 2-5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
2-5/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048258
K-Flex
SKU: 6RXLO048258
Brand: K-Flex
(177)
$27.92 each
BOX UP & SAVE 10%
$251.30 box of 10
$25.13 each
In Stock
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In Stock
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Product Image of 1-1/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
1-1/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
SKU: 6RXL038118
K-Flex
SKU: 6RXL038118
Brand: K-Flex
(75)
$8.46 each
BOX UP & SAVE 8%
$280.44 box of 36
$7.79 each
In Stock
Get 615 by Thu, Aug 20
In Stock
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Product Image of 3/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
3/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX068038
K-Flex
SKU: 6RX068038
Brand: K-Flex
(177)
$6.41 each
BOX UP & SAVE 8%
$223.82 box of 38
$5.89 each
In Stock
Get 108 by Thu, Aug 20
In Stock
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Product Image of 5/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
5/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
SKU: 6RXL038058
K-Flex
SKU: 6RXL038058
Brand: K-Flex
(75)
$5.93 each
BOX UP & SAVE 8%
$316.68 box of 58
$5.46 each
In Stock
Get 473 by Thu, Aug 20
In Stock
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Product Image of 5/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
5/8" Pipe (O.D.) x 3/4" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX068058
K-Flex
SKU: 6RX068058
Brand: K-Flex
(177)
$8.26 each
BOX UP & SAVE 8%
$228.00 box of 30
$7.60 each
In Stock
Get 96 by Thu, Aug 20
In Stock
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Product Image of 4-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
4-1/8" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO048418
K-Flex
SKU: 6RXLO048418
Brand: K-Flex
(177)
$42.91 each
BOX UP & SAVE 8%
$157.92 box of 4
$39.48 each
In Stock
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Product Image of 2" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
2" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX048200
K-Flex
SKU: 6RX048200
Brand: K-Flex
(177)
$10.34 each
BOX UP & SAVE 8%
$180.88 box of 19
$9.52 each
In Stock
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In Stock
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Product Image of 1-3/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 3/4" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO068138
K-Flex
SKU: 6RXLO068138
Brand: K-Flex
(177)
$18.72 each
BOX UP & SAVE 8%
$223.86 box of 13
$17.22 each
In Stock
Get 279 by Thu, Aug 20
In Stock
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Product Image of 1-5/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-5/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100158
K-Flex
SKU: 6RXLO100158
Brand: K-Flex
(70)
$32.82 each
BOX UP & SAVE 8%
$211.33 box of 7
$30.19 each
In Stock
Get 14 by Thu, Aug 20
In Stock
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Product Image of 1-3/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100138
K-Flex
SKU: 6RXLO100138
Brand: K-Flex
(70)
$28.68 each
BOX UP & SAVE 8%
$263.80 box of 10
$26.38 each
In Stock
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In Stock
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Product Image of 5/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
5/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100058
K-Flex
SKU: 6RXLO100058
Brand: K-Flex
(70)
$21.49 each
BOX UP & SAVE 8%
$355.86 box of 18
$19.77 each
In Stock
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In Stock
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Product Image of 1-5/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
1-5/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
SKU: 6RXL038158
K-Flex
SKU: 6RXL038158
Brand: K-Flex
(75)
$11.58 each
BOX UP & SAVE 8%
$234.30 box of 22
$10.65 each
In Stock
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In Stock
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Product Image of 5/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
5/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048058
K-Flex
SKU: 6RSR048058
Brand: K-Flex
(4)
$12.29 each
BOX UP & SAVE 8%
$610.20 box of 54
$11.30 each
In Stock
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Product Image of 2-1/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
2-1/8" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100218
K-Flex
SKU: 6RXLO100218
Brand: K-Flex
(70)
$40.02 each
BOX UP & SAVE 8%
$257.74 box of 7
$36.82 each
In Stock
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Product Image of 1/2" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
1/2" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048048
K-Flex
SKU: 6RSR048048
Brand: K-Flex
(2)
$10.87 each
BOX UP & SAVE 8%
$600.00 box of 60
$10.00 each
In Stock
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In Stock
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Product Image of 1-3/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 3/8" Wall Insul-Lock Pipe Insulation, 6'
SKU: 6RXL038138
K-Flex
SKU: 6RXL038138
Brand: K-Flex
(75)
$9.96 each
BOX UP & SAVE 8%
$229.00 box of 25
$9.16 each
In Stock
Get 445 by Thu, Aug 20
In Stock
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Product Image of 7/8" Pipe (O.D.) x 3/4" Wall Titan Pipe Insulation, 6'
7/8" Pipe (O.D.) x 3/4" Wall Titan Pipe Insulation, 6'
SKU: 6RSR068078
K-Flex
SKU: 6RSR068078
Brand: K-Flex
$22.74 each
BOX UP & SAVE 8%
$439.32 box of 21
$20.92 each
In Stock
Get 38 by Thu, Aug 20
In Stock
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Product Image of 3/4" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
3/4" Pipe (O.D.) x 1" Wall Insul-Lock DS Overlap Pipe Insulation, 6'
SKU: 6RXLO100068
K-Flex
SKU: 6RXLO100068
Brand: K-Flex
(70)
$23.29 each
BOX UP & SAVE 8%
$278.59 box of 13
$21.43 each
In Stock
Get 58 by Fri, Aug 21
In Stock
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Product Image of 1-3/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 1/2" Wall Titan Pipe Insulation, 6'
SKU: 6RSR048138
K-Flex
SKU: 6RSR048138
Brand: K-Flex
(1)
$16.48 each
In Stock
Get 129 by Thu, Aug 20
In Stock
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Product Image of 3/4" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 3'
3/4" Pipe (O.D.) x 1/2" Wall Insul-Lock DS Overlap Pipe Insulation, 3'
SKU: 6RXLO048068DP3
K-Flex
SKU: 6RXLO048068DP3
Brand: K-Flex
$4.59 each
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Product Image of 1-3/8" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
1-3/8" Pipe (O.D.) x 1/2" Wall Insul-Tube Pipe Insulation, 6'
SKU: 6RX048138
K-Flex
SKU: 6RX048138
Brand: K-Flex
(177)
$8.04 each
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Product Image of 1/4" ID x 1/2" W Wall Titan Pipe Insulation, 6'
1/4" ID x 1/2" W Wall Titan Pipe Insulation, 6'
SKU: 6RSR048028
K-Flex
SKU: 6RSR048028
Brand: K-Flex
(3)
$8.83 each
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$687.65 box of 85
$8.09 each
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More About K-Flex

K-FLEX USA is the North American division of the IK Insulation Group, producing closed-cell elastomeric pipe insulation, sheets, tape, and accessories for HVAC, refrigeration, and plumbing applications. Headquartered in Youngsville, North Carolina. INSUL-TUBE provides thermal insulation and a continuous vapor barrier without a separate wrap.

K-Flex Product Lines

  • INSUL-TUBE: Closed-cell elastomeric tube insulation in continuous and pre-slit formats.
  • INSUL-SHEET and INSUL-ROLL: Flat elastomeric foam for duct surfaces, tanks, and irregular shapes.
  • INSUL-LOCK: Pre-slit self-sealing tube insulation for retrofit installation without adhesive.
  • Tape and Adhesive: Elastomeric foam tape and contact adhesive for sealing joints and seams.
  • Fitting Covers: Pre-formed insulation for elbows, valves, and tees.

Why Contractors Specify K-Flex

K-Flex closed-cell foam provides an integrated vapor barrier without a separate wrap, covers standard HVAC refrigerant line ODs from 3/8 inch to over 4 inches, and INSUL-LOCK allows retrofit installation without disconnecting piping.

How to Choose a K-Flex Product

Match tube insulation to pipe OD and select wall thickness based on operating temperature and ambient humidity. Use INSUL-SHEET for flat surfaces. Seal all seams and joints with K-Flex tape or contact adhesive.

Frequently Asked Questions

  • Closed-cell vs. fiberglass? Closed-cell has a built-in vapor barrier; fiberglass is open-cell and requires a separate retarder jacket.
  • Pipe diameter range? 3/8 inch through 6 inch OD.
  • Can it be painted? Yes, with water-based acrylic for UV protection.
  • Hot water piping rated? Yes, up to 220 degrees Fahrenheit.
  • Pre-slit available? Yes, INSUL-LOCK with self-sealing lap for retrofit installation.
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