Boss® Males stem are an all-purpose hose couplings, universally recommended for steam hose connections. They are also widely used for air, water, fluid petroleum, chemicals and liquid petroleum gas up to 1 in. ID. Boss® stems can be applied to many types of rubber, synthetic, plastic, metallic or semi-metallic hose. For use with Boss® clamps.
- Recommended for steam service up to 450°F (232°C)
- 1-1/2in. (40 mm) hose shank
- 1-1/2in. (40 mm) Male NPT ends
- Construction: Plated iron
MS21 Dimensions (PDF Download)