Product Information
O-ring LWCO adapter (10x)
Compatible with 6 equipment models
- SSB-120 SSB-120 Boiler
- SSB-160 SSB-160 Boiler
- SSB-255 SSB-255 Boiler
- SSB-399 SSB-399 Boiler
- SSB-512 SSB-512 Boiler
- SSB-85 SSB-85 Boiler
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Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
O-ring LWCO adapter (10x) (Part No. 7738004929) is a Bosch replacement seal kit supplied as a pack of ten O‑rings for field service of LWCO adapter assemblies in hydronic systems. Intended for OEM retrofit and repair, the kit provides spare seals to restore leak‑tight connections on low‑water cut‑off fittings. Exact Bosch documentation for part number 7738004929 was not located on Bosch Home Comfort; description based on Bosch Web‑ETK O‑ring listings. (bosch-homecomfort.com)
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