Featuring a fixed 2-1/4°F differential

Contractor-Ready Kit: The -121 suffix designates a full installation kit

Replacing a fouled or corroded 46K18 burner restores proper heating system performance and safety

use shielded twisted pair wire to reduce electromagnetic interference (EMI) on long cable runs

What happens if I undersize this orifice for my load

Conbraco 50-803-02 Valve Refrigerant Featuring a fixed 2-1/4°F differentialConbraco 50 803 02 2 1 2" female npt Bronze Gas Cock with X Handle Position and 1 8" npt pilot tapping on both sides with plug on one side rated for 1 2 PSI up to 7,300,000 btu hr This item is not qualify for free shipping.