Description

AQUA SURE 43mm Inline Non-Return Valve (Small) – For 40mm Domestic Waste Pipe

The AQUA SURE 43mm Inline Non-Return Valve is designed to prevent water from flowing back into your pump or filtration system. It provides a smooth, unrestricted flow during operation and automatically seals shut when the pump stops—offering reliable backflow protection for ponds, water features, and filtration setups.

Key Features

• Includes 2 × 43mm solvent weld hosetails
  Compatible with flexible hose sizes:
  20mm (¾″), 25mm (1″), 32mm (1.25″), 38mm (1.5″)

• Includes 2 × 43mm reducing bushes
  Suitable for 43mm OD rigid pipe or fittings

• Automatic non-return action
  Valve closes instantly when pump flow stops, creating a watertight seal

• Non-restrictive flow design
  Ensures smooth, efficient water movement

• Threaded body & retaining nut
  Allows quick installation, easy removal, and simple maintenance

• Ideal for pond systems, filters, pumps, and general water installations

How the AQUA SURE Non-Return Valve Works

Water flows freely through the valve during operation.
When your pump switches off, the internal mechanism seals instantly, preventing reverse flow and protecting your equipment.

Thanks to the threaded retaining nut system, the hosetails can be removed easily—ideal for cleaning, servicing, or modifying your pipework without cutting pipes.

Conversion Kit (Sold Separately)

If you want to connect the AQUA SURE valve to rigid pipe or fittings, you will need the Inline Non-Return Valve Conversion Kit.
This kit is sold separately.

• Spinner nut OD: 56mm – fits 56mm(ID) bends, tees & pump fittings

• Includes a 56mm–56mm straight connector for rigid pipe

• Still allows full removal for maintenance by simply unthreading the spinner nut

What’s Included

• 1 × AQUA SURE Inline Non-Return Valve (43mm)

• 2 × Retaining Nuts

• 2 × Sealing O-Rings

• 2 × Stepped Hosetails

• 2 × 43mm Reducing Bushes