![Attwood 500 GPH Shower Sump MK2 System - 12V [5141-4] Anchoring & Docking | Fenders Humminbird IDMK-H7R Flush Mount Kit](https://cdn.shopify.com/s/files/1/0621/9680/9967/files/108040XL.jpg?v=1743703946)
Pay in 4 interest-free payments of $41.27 Learn more
Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
Humminbird IDMK-H7R Flush Mount Kit for Helix 7
The exclusive three-layer construction prevents collapse under vacuum and prevents ballooning or bursting under pressure
Model: 532-VW-S
XD Flag Pole
Attwood 500 GPH Shower Sump MK2 System - 12V [5141-4] Anchoring & Docking | Fenders Humminbird IDMK-H7R Flush Mount Kit500 GPH Shower Sump MK2 System 12V Attwoods shower sump systems deliver the performance youve been asking for. Choose from standard or large box sizes. They offer fast water flow into and out of the sump. The lid snaps into place to allow quick installation (and removal for cleaning) and includes a gasket to seal the sump box against overflow. The sump box even includes an air vent to prevent airlocks. It meets or exceeds all applicable standards of