Filter Tool Pack - Pro Curve V1Custom Designed Filter tools to make twisting on and off your filters easy! Included is the following items: (1) Large Filter tool to access the blue filter housing in the rear of the chiller (1) (1) Small Filter tool to access the clear hair catcher filter that is in line Note: See the pictures of the corresponding cold plunge to make sure you are purchasing the right tool for your cold plunge! All sales final. No returns or refunds on accessories.