FAQ

Fittings are made of food-grade POM plastic; PE tubing is food-grade polyethylene. Both comply with standards for drinking water use, non-toxic, no odor, safe for household water filtration systems.

NPT is a standard American tapered pipe thread (general type). The thread has a gap, requiring a waterproof gasket for a waterproof seal. NPTF is a standard American dry-seal tapered pipe thread. It features a precise thread engagement, enabling a dry seal.

Please contact us for bulk/mixed orders.

Not recommended for long-term outdoor direct sunlight, which may accelerate aging. Please install indoors or cover for protection.

Products are packed in sealed plastic bags in fixed quantities, then placed in thickened cartons and securely sealed with transparent packing tape; Large shipments will have plastic pallets added to the bottom. As export shipments are subject to customs inspection and possible opening, we do not add an outer bubble wrap layer to facilitate inspection. The packaging is sturdy and reliable for international shipping.