TruDesign Recessed Black Skin Fittings (Thru Hulls) suitable for use with TruDesign Ball Valves to create the ideal seacock combination.
Use with a Load Bearing Collar for ultimate strength.




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TruDesign Recessed Skin Fittings (Thru Hulls)

  • Designed and made in New Zealand, the Skin Fitting body and nut are moulded from a glass-reinforced nylon composite.
  • High strength, high-modulus glass fibres provide dramatic strength, stiffness, toughness and dimensional stability.
  • These properties allow a significant weight reduction over metallic fittings.
  • TruDesign Skin Fittings eliminate the corrosion and electrical bonding problems associated with metallic fittings.

TruDesign Skin Fittings are certified by the International Marine Certification Institute (IMCI) & Burea Veritas to meet; ISO 9093-2 Small craft — Seacocks and through-hull fittings — Part 2: Non-metallic. 
They also comply with ABYC H-27 when used in conjunction with the TruDesign ABYC collar.

  • When used in below waterline applications, a Ball Valve should be directly connected for safety and compliance to relevant marine standards.
  • An Application Tool is available to allow the skin fitting to be installed by one person.
  • Please download the Data Sheet for dimensions, features and installation instructions.
  • Suitable Adhesive/Sealant for bonding the skin fittings can be found here.
  • See the Mould Plugs for use with these Skin Fittings. Ideal for production boat builders.

  • Manufactured from a glass-reinforced nylon composite – High strength and light weight
  • Compatible with most hull types – Can be used on wood or GRP hulls
  • Immune to corrosion and electrolysis – Long life with no concerns over decreased performance due to corrosion
  • Chemical resistant – Impervious to diesel, petrol and antifouling paints
  • UV resistant – Will not degrade or discolour with ultraviolet light from the sun
  • High quality surface finish – Will not discolour with green film as similar bronze fittings do
  • Paintable – Can be painted with all types of antifouling
  • Limited Warranty
  • TruDesign accepts no responsibility for Ball Valves or Skin Fittings which are improperly installed, especially in the case where a Ball Valve with tapered threads has been used.

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Additional information


1/2" BSP, 3/4" BSP, 1" BSP, 1 1/4" BSP, 1 1/2" BSP

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