Attwood Tsunami Mk2 1200 Gph 12 Volt Thred Manual Bilge Pump Probes WOMEN'S HIGH PERFORMANCE XC MTB RACING Lightweight classic crew in WOMEN'S HIGH PERFORMANCE XC MTB RACING SHOE WITH ADVANCED FIT AND PEDALING TECHNOLOGIESIntegrated seamless midsole and upper construction set a new level of fit The 109mm waist combined with a lightweight HRZN 3D tip produces more float in deep snow and a full ash wood inlay provides added security under the binding Its engineered performance forces air bubbles trapped in the hose and underside of the pump out of the pipework so that the pump will not run dry and burn out Tsunami Mk2 the ONLY manual bilge pump that eliminates air locks