Chevron down icon Chevron down icon Rule Rulemate 500GPH Automatic Bilge pump by RWB marine Sale $136.00 | / SKU rwb822 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Contact us for availability Email address Email me when available 500 US Gallons per hour - 31 Litres per minute at open flow 289 US Gallons per hour - 18 Litres per minute at 1 metre head Supplied with 1 x 20mm (3/4") threaded straight hose outlet