20mm 25mm White Pagoda PVC Pipe Connector Fittings Adapter To Hose OD 5mm-20mm

Measure the outer diameter (OD) of your existing PVC pipe. If it measures approximately 20mm (~13/16"), select the 20mm variant. If it measures approximately 25mm (~1"), select the 25mm variant. The pipe-side socket is sized to slip over the pipe OD, so matching OD is critical for a leak-free fit.

The pagoda barb is designed to accept flexible hose with an inner diameter (ID) ranging from 5mm to 20mm. The stepped ridges allow the barb to grip hoses of varying wall thicknesses. For the most secure connection, choose a hose whose ID is 1–2mm smaller than the barb's largest step diameter so the hose stretches slightly over the barb.

For low-pressure gravity-fed systems (such as drip irrigation or aquarium filtration), the pagoda barb ridges typically provide sufficient grip without clamps. For pump-assisted systems operating above approximately 0.3 MPa (3 bar / 43 psi), adding a hose clamp over the barb is recommended to prevent blowoff under pressure spikes.

These fittings are rated for cold water applications up to approximately 60°C (140°F). They are not suitable for hot water supply lines, steam, or continuous high-temperature exposure. For outdoor use in direct sunlight, consider wrapping the fitting or routing it through shaded conduit, as prolonged UV exposure can cause PVC to become brittle over time.

Yes. Rigid PVC is non-toxic when fully cured and is widely used in aquarium and pond plumbing. These fittings are compatible with standard aquarium silicone tubing and flexible pond pump hose in the 5–20mm ID range. Rinse the fitting with clean water before installation in a fish-bearing system.

For a basic drip irrigation layout with 4–8 branch points, a 5-piece or 10-piece pack is usually sufficient. If you are building a larger grid or want spares for future repairs, the 10-piece pack offers the best per-unit value. Single and 2-piece packs are ideal for one-off repairs or testing fit before committing to a larger order.

The socket end is sized for rigid PVC pipe OD. HDPE and polyethylene pipes of the same nominal size often have different OD tolerances. If your HDPE pipe OD matches 20mm or 25mm exactly, the fitting may work, but a pressure-tight seal is not guaranteed. For HDPE systems, verify the OD with calipers before ordering.