Upgrading or maintaining your koi pond filtration system requires dependable fittings that prevent costly leaks and structural pressure losses. Our reducing sleeves (pressure to waste) provide the ideal solution for connecting rigid pressure pipework directly to standard waste pipes.
Whether you are connecting a high-pressure pump outlet to a waste line or adapting backwash drainage for a bead filter, these flexible reducing sleeves deliver a watertight seal every time.
Key Benefits & Features:
- Seamless Compatibility: Easily steps down high-pressure pond pipework to standard waste drainage sizes.
- Heavy-Duty Construction: Resistant to chemical treatment, high water pressure, and harsh outdoor weather conditions.
- Tight, Secure Seal: Designed to prevent leaks, water loss, and pressure drops across your filtration line.
- Easy Installation: Can be solvent-welded or securely clamped using standard stainless steel hose clips depending on your setup.
Ideal Applications:
- Connecting bead filter or drum filter waste outlets to main drainage.
- Adapting pressure pipe lines to flexible waste hoses.
- General koi pond pipework modifications and repairs.
Ensure your pond filtration runs at peak efficiency. Order your reducing sleeves pressure to waste fittings from West Midlands Koi today for fast UK delivery and expert support.
These Reducing Sleeves, or inserts as many people call them, are to reduce the internal sizes of a particular pipe to enable a slightly smaller pipe to fit the connection, whether that connection is to a socket, bend or some other fitting – they should, of course, be solvent welded into place prior to the actual pipe connection being made.




