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Product Reviews
5 out of 11 reviews
100% would recommend this product
5 star
100%
4 star
0%
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Showing 1-10 of 11 reviews
Rep. Knew exactly what I needed.
One of the relays was bad. The circular would not turn off. Plugged in the new relay, Supplyhouse sent the very next day. Quick and easy fix!
Egor
Boston
2 years ago
Verified Buyer
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Hard pressed & couldn't afford down Time.
Great replacement relay. System was up and running in minutes. Pulled the defective relay out and slipped the replacement relay in. 40 year old boiler hasn't missed a lick since installed. As always dependable lighting fast delivery by the folks at Supply House. That's the biggest benefit and why I continue to make them my "Go To" Supply Store.
Heat's ON
Mt. Clemens, Michigan
3 years ago
Verified Buyer
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Working well So Far
Replaced a burnt out relay. This one seems to be doing just fine.
PSC
Westbury, NY
4 years ago
Verified Buyer
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exactly what was needed
a relay switch that when it blows you needs a new one. the item functions as intended.
slow talking/walking john
ny
5 years ago
Verified Buyer
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Thanks, zone circulating again!
Easy purchasing experience and prompt delivery, fair price
Jeff in Quincy
Quincy, MA
5 years ago
Verified Buyer
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Quick to receive
Nice product, quick shipping
Pete
Hubbardston, MA.
8 years ago
Verified Buyer
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Exact replacement.
Works perfectly every time.
Ed
Maine
8 years ago
Verified Buyer
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Thanks for quality parts
I work at a Christian camp doing maintenance.this relay is used to supply water to one of our venues up on the hill. We had two relays of a deferent brand fail in a weeks tiime cause if the lose of a secondary pump
Yogi
Tuolumne ca
9 years ago
Verified Buyer
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24V
Works grate. Easy to install.
Wola
Rochester, NY
10 years ago
Verified Buyer
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Fast delivery, works perrfect
Got my furnace up and running.
Bob
Jefferson, NY
10 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: I. Have a 504 that is buzzing and when zone one comes on zone 4 lights up too What Part do I need to replace thanks
Asked by Frank 11 years ago
Add your answer
Verified Reply- SupplyHouse StaffThe only available replacements for the SR504 are the replacement relays and the fuses. The products are listed on the product page for the SR504 under the replacement parts tab. If neither of these are the issue you may need a new unit.
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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 PolicyEasy 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