Precise Modulation: The 8-13 psi spring return range allows for accurate sequencing and fail-safe positioning

the KZ-4000 series utilizes self-wiping silver alloy contacts to minimize carbon buildup and maintain low contact resistance over extended cycles

Rugged Construction: Built with a brass body and stainless steel internal parts for enhanced durability

leak-proof heating element installation

For outdoor protection against debris and moisture

Mepco (Dunham Bush) ML7827 Seal Kit 318820-201 Precise Modulation: The 8-13 psiThe Mepco (Dunham Bush) ML7827 Seal Kit is a precision engineered 143 215JM pump repair solution designed for high demand hydronic and HVACR applications. This A7 pump seal kit is specifically built for heavy duty service in Dunham Bush centrifugal pumps, including the A7, PM7, and CRVA7 series. Engineered to restore factory grade sealing, the kit features a durable Buna N mechanical seal, which provides excellent resistance to oil and common heat