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Speedy Downpipe Filter - For Round Downpipes

£29.99

The Garantia Speedy Downpipe Filter connects your water butt to your round downpipe without cutting the pipe in half. Manufactured by Graf, sold under their Garantia range, it filters debris from the incoming rainwater before it enters the tank, and automatically diverts flow back down the downpipe once the butt is full — no overflow risk. A hole-saw drill bit is included, so no additional tools are needed for installation.

Compatible with round downpipes from 68mm to 100mm in diameter, across plastic, cast iron, and aluminium.

Key features

  • Fits round downpipes 68mm–100mm – compatible with plastic, cast iron, and aluminium downpipes

  • Hole-saw drill bit included – drill a hole in the side of the downpipe and insert the rubber cup; no need to cut the pipe in half

  • Built-in debris filter – keeps leaves, moss, and roof debris out of the tank

  • Automatic overflow diversion – water returns down the downpipe once the butt is full

  • Stop-flow function – manually stop water entering the butt during hard frost to prevent freezing damage

The Garantia Speedy Downpipe Filter connects your water butt to your round downpipe without cutting the pipe in half. Manufactured by Graf, sold under their Garantia range, it filters debris from the incoming rainwater before it enters the tank, and automatically diverts flow back down the downpipe once the butt is full — no overflow risk. A hole-saw drill bit is included, so no additional tools are needed for installation.

Compatible with round downpipes from 68mm to 100mm in diameter, across plastic, cast iron, and aluminium.

Key features

  • Fits round downpipes 68mm–100mm – compatible with plastic, cast iron, and aluminium downpipes

  • Hole-saw drill bit included – drill a hole in the side of the downpipe and insert the rubber cup; no need to cut the pipe in half

  • Built-in debris filter – keeps leaves, moss, and roof debris out of the tank

  • Automatic overflow diversion – water returns down the downpipe once the butt is full

  • Stop-flow function – manually stop water entering the butt during hard frost to prevent freezing damage

Product Specification

Length: 250mm

Width: 120mm

Height: 90mm

Compatible downpipe sizes: 68mm–100mm (round)

Compatible materials: Plastic, cast iron, aluminium

Download specification

Installation instructions

Delivery & Returns

  • Free delivery for England, Wales, and most of mainland Scotland. Additional charges may apply for the Scottish Highlands, Scottish Islands, Northern Ireland, Isle of Man, Channel Islands, or other remote locations, confirmed before order confirmation or dispatch.

  • Most orders are fulfilled within 10 working days from payment. Larger or specialist items may take longer — please contact us if your order is time-critical.

  • Offloading is the customer’s responsibility. Suitable equipment should be available to safely remove goods from the delivery vehicle.

  • For full delivery details, see our Delivery Policy.

  • Returns & Refunds: Standard items can be returned within 14 days of receipt, subject to our Returns & Refunds Policy. Many products are bespoke or custom-made (modified dimensions, fittings, pumps, colours, etc.) and cannot be returned unless faulty.