51L Underslung Waste Water Tank & Sill Kit 750mm(L) x 370mm(W) x 160mm(H)

This 51 litre waste water tank kit features a genuine Wydale water tank and has been designed for campervans, motorhomes, caravans and off-grid vehicle conversions. The compact low-profile design helps provide a reliable onboard waste water storage solution while maximising valuable internal vehicle space.

Manufactured in the UK from durable polyethylene, Wydale tanks are well known for their strength, reliability and long service life. The robust construction makes them ideal for waste water use in leisure vehicles.

This complete waste water kit includes the essential fittings and components required for installation, making it suitable for both new conversions and replacement waste water systems.

What’s Included-

1 × Genuine Wydale 51L Universal Water Tank
(L: 1200mm, W: 400mm, H: 120mm)

1 × Universal Tank Mounting / Strap Kit & Fixings

1 × 90 Degree Tank Connector
(3/4" BSP Male to 3/4" (19mm) Barb)

2 × 20mm Convoluted Waste Pipe – Black

3 × Stainless Steel Hose Clips – 16-27mm

1 × 1/2" BSP Male to 3/4" (20mm) Male Grey Barbed Hosetail

1 × Waste Water Sill Mount

⚠️ Important Information

Tank may contain traces of water on arrival—this is normal due to leak testing.

Please ensure the tank is fully cleaned before use.

Suitable for waste water use only.

📏 Specifications

Capacity: 51 litres

Dimensions: 1200mm (L) × 400mm (W) × 120mm (H)

Material: Polyethylene

Tank Colour: Black

Please check available installation space and dimensions before purchase.

Professional installation is recommended.