Best Seller | Unicel C7605 50 Square Foot Baker-Hydro HM50 Replacement Filter Cartridge White Shake off the summer heat in a cool pool. Make a splash in the cleanest swimming pool in the neighborhood with Unicel Baker-Hydro HM50 Replacement Filter Cartridge. Replacement filter for Baker-Hydro 17-B2055.When it comes to pool maintenance do it... more | | $66.99 FREE shipping go to store |