50mm Straight or Dome Port Extension Ring

The AquaTech 50mm Extension Ring is designed to extend the length of dome lens ports by 50mm, and can be used with a variety of lenses.

Aluminium Build with Knurled Grip

With a sturdy aluminium build, the extension is durable and can withstand frequent use. The ring’s knurled grip allows for it to be easily installed by hand, no tools required.

Compatible with AquaTech Water Housings

The Extension Ring for Select LP-Series Lens Ports features a threaded system that is compatible with AquaTech Water Housings released prior to November 2013 and also ATB Housings. See Specifications tab for further information.