TruDesign Thru-Bulkhead Threaded Tube

Rout plumbing or wiring through bulkheads easily with the TruDesign Thru‑Bulkhead Threaded Tube, precision‑moulded in New Zealand from high‑strength, glass‑reinforced nylon composite. Designed to work seamlessly with TruDesign’s BSP threaded female fittings, this composite tube offers a clean, waterproof bulkhead pass-thru solution—eliminating corrosion, electrolysis, and discoloured fittings common with metal alternatives 

Built to endure marine environments, it resists diesel, petrol, household chemicals, UV exposure, and operates reliably from −40 °C to +110 °C. Supplied with nuts and washers for bulkhead installation, it’s available in 1″ and 1½″ BSP sizes and 140 mm length—ideal for tidy plumbing layouts, cabinetry feed-throughs, or wiring bulkheads.

Key Features:

• Made from glass-reinforced nylon composite—strong, lightweight, corrosion-proof 

• Chemical & UV resistant—won’t degrade or discolour over time 

• Wide operating range −40 °C to +110 °C—built for all NZ marine environments 

• Includes bulkhead nuts & washers—supplied ready for installation 

• BSP parallel threads—compatible with other marine fittings 

• Tidy, corrosion-free bulkhead solution—no electrolysis or green film