Stainless Steel Hose Fitting for Hot Tub & Ice Bath

Description

Stainless Steel Hose Fitting for Hot Tub & Ice Bath (LV-RV)

The cleanest way to add a heat pump, filter, or circulation system to your existing hot tub or ice bath — without compromising the shell.

Most wall fittings on the market require a main hole plus 4–6 separate screw or rivet holes, plus glue or sealant to make the joint watertight.
That means more drilling, more weakening of the tub wall, and more chances of a leak.

Our patent-pending design fixes all of that. One drilled Ø35 mm hole, no glue, no rivets, no screws into the tub wall. A single sealing gasket on
the inside of the tub provides watertightness; an external clamping nut compresses it against the wall.

Perfect for:

• Retrofitting a Poolex Ice Spa or O’Spa heat pump onto an existing tub
• Adding a FilterMax filtration system to a wooden hot tub or ice bath
• Replacing worn plastic through-hulls with a long-lasting stainless steel version
• Building a custom outdoor setup with a heat pump, filter, or cold plunge loop

Choose your length:

• LV-RV-9 (9 cm) — the standard fitting for fiberglass ice baths and most wooden hot tubs. Choose this if you have rear or side access to the wall fitting.
• LV-RV-15 (15 cm) — designed specifically for the Nordic Six hot tub. The extra length lets the fitting extend past the integrated stove, making hose installation and replacement practical from outside the stove housing.

Key Features:

• Patent-pending single-hole installation — no separate fastening holes, no glue, no rivets
• 304 stainless steel — won’t corrode in chlorinated, salt, or freshwater
• Ø35 mm hole diameter — same for both glass fiber and wooden walls
• Internal G1″ (1 inch) thread — standard European plumbing thread for accessories
• Two lengths (9 cm and 15 cm) to cover virtually all standard tubs
• Compatible with 32 mm and 38 mm pool hoses (with Ø32/38 mm rubber adapter)
• Designed for years of outdoor use in chlorinated, salt, or freshwater
• Available with optional safety grid — protects bathers from suction injuries and the circulation pump from hair and debris

What’s in the box:

• 2× stainless steel wall fittings
• 2× sealing gaskets (inside the tub, under the fitting’s collar)
• 2× clamping nuts (outside the tub)
• 2× washers/spacers (outside the tub, under the clamping nuts)
• 2× metal closure caps (for winter or when the heat pump is removed)
• Optional: safety grid for the lower water-outlet fitting

Installation:

Drill one Ø35 mm hole using a hole saw with a centering pilot bit. Same hole size for both glass fiber and wooden walls. Total install time 15–30 minutes per fitting once the hole is drilled.

▸ Watch the full installation video here.

Patent status:

The technical solution is protected. A utility model application has been filed at the Estonian Patent Office (April 2026).

Material: 304 stainless steel
Hole diameter required: Ø35 mm
Internal thread: G1″ (1 inch)
Compatible hose sizes: 32 mm and 38 mm (rubber adapter included in the package)
Set contents: 2 fittings + gaskets + nuts + washers + closure caps