Viva Magna 1 1/2" Shallow Bath Trap — WTB4050
The Viva Sanitary Magna WTB4050 is a durable, high-grade polypropylene 40mm (1 1/2") low-profile bath trap specifically engineered for under-bath installations with restricted floor clearance. Equipped with an effective 50mm anti-odour water seal, it prevents sewer foul smells from drafting into the bathroom while keeping the overall trap profile compact enough to fit beneath shallow or low-level baths. It uses a high-integrity compression jointing system with easy-grip knurled nuts to guarantee a watertight seal without the need for additional sealants.
Identification Guide:
Brand: Viva Sanitary | Range: Magna Traps | MPN: WTB4050 | FTB SKU: FTB4094 | Inlet Thread: 1 1/2" BSP (Flat Washer) | Water Seal: 50mm | Material: White Polypropylene
Key Features
- Low-Profile Design: Engineered with a compact vertical drop to fit easily under baths mounted close to the floor or floor joists.
- 50mm Trap Seal: Provides a 50mm standing water seal to block rising drain odours, making it ideal for direct runs into domestic soil stacks.
- Universal Outlet Connection: Multi-fit compression outlet connects securely to standard UK 40mm / 1 1/2" plastic (push-fit and solvent weld), copper, and lead waste pipe.
- Leak-Free Joint Technology: Supplied with an inlet flat washer, heavy-duty tapered rubber seal, rubber 'O'-ring, and dedicated slip ring for hand-tight, leak-free security.
- High Chemical Resistance: Moulded from robust white polypropylene that handles high boiling-water discharge temperatures, domestic detergents, and bath additives without warping.
Installation & Sizing Note
Sizing Verification: 1 1/2" BSP (approx. 40mm) is standard for domestic baths and kitchen sinks. It will not fit standard 32mm (1 1/4") wash hand basins. When connecting to the underside of the bath waste outlet, ensure the flat rubber sealing washer is seated square before tightening the collar by hand — do not use grips or pipe wrenches on plastic threads.