PVC Klebefitting Aquarium Fish Tank Wasser Rohr Fittings Stecker 3 Farbe 20~50mm

Match the fitting's inner diameter (ID) to your pipe's outer diameter (OD). For standard thin-wall PVC pipe, the pipe OD typically equals the fitting ID. For example, a 20 mm fitting accepts 20 mm OD pipe. If you are unsure, measure the outer diameter of your existing pipe with calipers and select the matching size from the variant options above.

Rigid PVC is widely used in aquarium plumbing and is considered inert in fresh and salt water once the solvent cement has fully cured. Allow the bonded joint to cure for at least 24 hours and flush the system thoroughly with water before introducing livestock. If you are using the fittings in a sensitive reef or planted tank, extend the flush period and test water parameters before stocking.

Solvent cement is not included. Use a PVC-rated solvent cement (and PVC primer where required). Apply primer to both the pipe end and the inside of the socket, then apply cement, push the pipe fully into the socket with a slight twist, and hold for approximately 30 seconds. Allow the joint to cure fully — typically 15–30 minutes for handling and 24 hours before pressurising or filling with water.

The three colours (white, blue, grey) are provided for colour-coding and aesthetic purposes only — they do not affect the mechanical or chemical performance of the fitting. Colour-coding is useful in multi-circuit systems (e.g., supply vs. return lines, fresh vs. salt water loops) to make circuit identification faster and reduce the risk of cross-connection errors during maintenance.

Yes. Rigid PVC is suitable for outdoor use in buried or shaded installations such as pond filtration pipework. For above-ground outdoor use in direct sunlight, consider wrapping or painting the fittings to reduce UV exposure, as prolonged direct sun can cause surface discolouration of unprotected PVC over time. Performance is not affected by typical outdoor temperature ranges for cold-water service.

No. Solvent-weld joints are permanent — the solvent cement chemically fuses the pipe and fitting into a single piece. If you need to reconfigure your pipework, cut the pipe at the fitting and use a new fitting and a short pipe stub to reconnect. For systems where future reconfiguration is likely, consider using union fittings at key points in the circuit to allow non-destructive disassembly.

Multi-packs (3, 5, or 10 pcs) offer a lower per-unit cost compared to single-piece orders, which is useful when plumbing a full aquarium sump system, pond circuit, or water-distribution manifold that requires multiple identical fittings. Having spare fittings on hand also avoids project delays if a fitting is damaged during solvent-weld assembly.