Marshall Excelsior Flow-Longer Thermoplastic Hose - 144" - MER421-144

The MER421-144 is a 12-foot thermoplastic hose designed for propane and LP-gas appliance connections. This flexible hose features durable brass fittings and is built to meet rigorous safety standards for high-pressure use.

Features:

• Constructed from flexible thermoplastic material to ensure long-lasting durability and ease of installation
• Equipped with fully crimped brass ferrules that provide secure and leak-resistant connections on both ends
• Includes standard 1"–20 female and male swivel fittings compatible with common propane appliances and kits
• Rated for a working pressure of 350 psig, supporting reliable performance under high-pressure conditions
• Tested to withstand a 400 lbs pull force, ensuring strong mechanical resistance during use
• Extended 12 ft length offers versatile reach for various appliance setups and configurations

Specifications:

• Hose Length: 12'
• Inside Diameter: 1/4"
• Connection A: 1"–20 Female Swivel
• Connection B: 1"–20 Male Swivel
• Working Pressure: 350 psig
• Pull-Test Rating: 400 lbs
• End Ferrules: Brass, Fully Crimped
• Approvals: UL and CGA Certified

Compatibility:

• Designed for LP-gas and propane appliance connections requiring 1"–20 swivel fittings
• Compatible with Stay-Longer and Flow-Longer kit assemblies for extended hose applications