Coupling-Filler 1 Mpt X 1-3/4 Acme 6

Acme Safety Couplings Acme safety couplings with a rugged, light-weight aluminum casting molded around a steel insert. Designed to reduce the undesirable flashing of liquid ammonia when making connections.
Specifications
Brand Continental NH3 Products
Pack Size 1.0000
UOM EA
Supplier Part Number A-577-B