Thru-Hulls Polypropylene Thru-Hull 38 mm (1½\") | 4Boats

These thermoplastic thru-hull fittings are molded in polypropylene to resist electrolysis and perform reliably above the waterline. Designed for easy above-waterline installation, they suit bilge, scupper and general service lines.

• Fits hose size: 1-1/2\" I.D. (38 mm)
• Stem length: 3-1/2\" (89 mm)
• Max hull thickness: 1-1/4\" (32 mm)
• Flange diameter: 3\" (76 mm)
• Installation hole size: 1-7/8\"–2\" (48–51 mm)
• Construction: Polypropylene; Color: White
• Model numbers: 3875-1, 3875-3
• Durable construction: thermoplastic polypropylene resists electrolysis
• Easy installation: designed for straightforward above-waterline fitting
• Reliable performance: long-lasting use in marine environments

These thermoplastic thru-hull fittings are molded in polypropylene to resist electrolysis and perform reliably above the waterline. Designed for easy above-waterline installation, they suit bilge, scupper and general service lines.

• Fits hose size: 1-1/2\" I.D. (38 mm)
• Stem length: 3-1/2\" (89 mm)
• Max hull thickness: 1-1/4\" (32 mm)
• Flange diameter: 3\" (76 mm)
• Installation hole size: 1-7/8\"–2\" (48–51 mm)
• Construction: Polypropylene; Color: White
• Model numbers: 3875-1, 3875-3
• Durable construction: thermoplastic polypropylene resists electrolysis
• Easy installation: designed for straightforward above-waterline fitting
• Reliable performance: long-lasting use in marine environments