Apply to be a TradeMaster!
Main product image of 18" Baseboard Diffuser (White)
Magnifying glass
Hover image to zoom
18" Baseboard Diffuser (White)
Magnifying glass
Hover image to zoom
$14.08 each
In Stock
In Stock
Get 674 Tomorrow, Jun 9
Order by 6PM, receive Tomorrow
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Color
White
Product Highlight: Material
Steel

Specs

Product Type:

Supply Diffuser

Overall Size:

18" x 4-1/2"

Height (Wall Opening):

4-1/2"

Width (Wall Opening):

15"

Color:

White

Material:

Steel

Application:

HVAC

Contact

Help Face
CALL US
Question? Call or text 888-757-4774
+
Help Face

Questions?

Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
MondayThursday
8am7:45pm
Friday
9am7:45pm
SaturdaySunday
9am5:45pm


QUICK SUPPORT

Order StatusShipping PolicyReturnsIs My Item in Stock?Request Item for Site

Compare Similar Products

Brand
Product Type
Overall Size
Height (Wall Opening)
Width (Wall Opening)
Color
CURRENT ITEM
Bluefin
Supply Diffuser
18" x 4-1/2"
4-1/2"
15"
White
Supply Diffuser
18" x 4-1/2"
4-1/2"
12"
White

You May Also Need

30" x 6" White Baseboard Return Air Grille (658 Series)
SKU: 43706
Hart & Cooley

Product Reviews

4.69 out of 55 reviews
95% would recommend this product
4.69
out of 55 Reviews
95% would recommend this product
WRITE A REVIEW
5 star
84%
4 star
7%
3 star
5%
2 star
2%
1 star
2%
WRITE A REVIEW
Customer Images

Most Liked Positive Review

Great looking, good quality and reasonably priced diffusers

Remodeling my daughter's older home with a small budget I needed to find Very Reasonable new vent diffusers for the entire house. I looked at all the big box stores, all over the internet and anywhere else I thought might have them. I had previously purchased a water heater from Supplyhouse.com and checked the diffusers there. I found I could purchase a whole house worth of diffusers from supplyhouse.com for the cost of 3 of them at a big box store or anywhere on the internet. The diffusers are modern looking and high quality!
VS

Most Liked Negative Review

Flimsy

I bought this product as well as the 24" diffuser to replace 50 year old Hart & Cooley diffusers, which were made of very heavy gage steel that had been painted repeatedly and were stuck open. This product is made of very thin gage steel that dents easily. In addition, the valve does not stay open unless you bend the valve control stem to keep it open. I had the products replaced 3 times because the ones shipped were either dented or the corners were crushed. SupplyHouse was great about replacing the products but the products are junk. Spring for the Hart & Cooley diffusers if you can find them.
Showing 1-10 of 55 reviews

As advertised. Very good quality.

These baseboard diffusers are of high quality and strength. the finish quality is excellent, they are not thin or cheap.
Dan
Syracuse, ny
3 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I would by this product again.

Great fit for the ones I was replacing.
Nick
Elkhart indiana
4 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Really like the products

The product specifications were spot on, although the box was undamaged, there were some minor damage to the vents themselves. Mainly the vent dampers. The control arms were bent to the side and I was able to bed them back in the proper position so they functioned as normal. I would buy the product again if I needed to.
Jeff
Ohio
6 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Perfect fit. Perfect price

The diffuser matched my others perfectly. The price was great . Delivery was prompt.
Sue
South Carolina
7 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Quality

Came in as expected very quick delivery. Very satisfied.
KJR
Ny
11 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Just what the DR. ordered

Worked out fine.
T
Boston Hts. Ohio
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Great product

Fast shipping, low cost and great product!!
BJ
Nashville,TN
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I will buy from SupplyHouse.com again!

The product was packaged incredibly well. It arrived lightening fast! The price was very competitive and the product couldn't be found anywhere, so, to get it at an affordable price, delivered the next day was amazing!
Dee
Ohio
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

If you need these, buy them now!

The exact same units sold at three local BBS for three times as much. Same brand, same quality, same everything. The HVAC tech who recently came to my home told me to order as much as possible from Supply House, and I will.
sah1109
Lyndon Station WI
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Product good, but

Be prepared to submit a replacement request. I had several shipments and each time units showed up damaged in transit. Nowhere near enough packing material is used to secure the product. Otherwise, the product is fine, works as expected.
CR
Milwaukee, Wisconsin
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping Policy
Easy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy