Maxitrol MR251D-1 1/2 Regulator R-410A this LLD-305 model features 5/8"
Baker’s notes & crumb story
Description
Maxitrol MR251D 1 1 2 Regulator R 410A this LLD 305 model features 5 8" this LLD 305 model features 5 8" SAE flare connections Dual Speed Logic: Specifically optimized for 2 stage gas valves