When a leaking joint or mismatched fitting disrupts a carefully built aquarium filter loop or pond circulation system, the fix needs to be permanent — not a temporary patch. These white PVC 16mm internal diameter solvent weld fittings are designed for hobbyists, aquarists, and DIY water system builders who need metric-sized, pressure-rated connections that bond chemically and hold under continuous flow.
Each fitting is moulded from rigid white PVC with a 16mm internal diameter (approximately 5/8 in.) bore, sized to accept standard metric 16mm OD pipe. The range covers 13 fitting types — straight couplings, 45° and 90° elbows, tee pieces, 3-way and 4-way elbows, reducing sockets (ID 16×20mm and OD×ID 20×16mm), end caps, tank connectors, 90° tank connectors, and union plains — available in quantities of 1, 2, or 5 pieces per order.
Typical applications include recirculating aquarium sump plumbing, koi pond filter pipework, hydroponics irrigation manifolds, and low-pressure water feature installations where solvent cement creates a leak-free, rigid joint without threading or compression tools.
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Metric 16mm ID Bore
Sized to accept standard 16mm OD metric PVC pipe for a flush, gap-free solvent weld joint with no adapters required.
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13 Fitting Types in One Range
Straight couplings, 45°/90° elbows, tee pieces, 3-way and 4-way elbows, reducing sockets, end caps, tank connectors, and union plains — all in the same bore size.
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Rigid White PVC Construction
Moulded from rigid PVC rated for cold-water pressure service — resistant to chlorine, mild acids, and biological fouling common in aquatic environments.
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Solvent Weld Joint System
Chemical bonding with standard PVC solvent cement creates a monolithic, vibration-proof connection that does not loosen over time unlike push-fit alternatives.
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Aquatic-System Ready
White PVC is inert once cured — safe for use in fish tanks, koi ponds, and aquaponics loops where water quality and livestock safety are priorities.
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Flexible Pack Quantities
Order 1, 2, or 5 pieces per fitting type to match your exact project bill of materials without over-buying or under-ordering.
