Ultra Drain Guard - Witches' Hat / Gully Filter Sack

• Product Description

The Ultra Drain Guard provides an effective solution for removing oil and sediment pollution from surface water entering gully drains across construction sites, farms, industrial estates, and other areas prone to stormwater contamination in the UK. Made from high-permeability non-woven polypropylene geotextile, it traps solids and oils while allowing water to flow through. Incorporating bypass ports, it maintains consistent drainage performance without compromising flow. Designed for easy placement directly into gully pots, the Oil and Sediment model captures up to 3.29 litres of hydrocarbons and up to 18 kg of sediment, sand, or debris, ensuring safe, compliant, and efficient water management.


• Designed to remove oil and sediment pollution from surface water before it enters gully drains

• Made from high-permeability non-woven polypropylene geotextile for effective filtration

• Traps solids and oils while allowing water to drain through efficiently

• Features bypass ports to maintain consistent flow into the drain

• Easy to place directly into gully pots for rapid deployment and use

• Oil capture: up to 3.29 litres; Sediment capture: up to 18 kg of sand, debris, or solids

• Ideal for construction sites, farms, industrial estates, and areas prone to stormwater pollution

• Dimensions: 1219mm x 914mm x 457mm for effective coverage of standard gully drains