Hayward Filter Cartridges (Set of 2) for TigerShark and SharkVac Robotic Pool Cleaners | RCX70101PAK2 Immobilizers systems require 7 full grids

systems require 7 full grids + 1 partial grid for a complete re-grid

This cartridge installs with the slotted bottom end seated over the standpipe in your filter housing — the solid molded cone handle at the top provides a secure grip for removal

this union kit is listed as optional — it is typically added when the filter port is plumbed directly without a multiport valve and a serviceable disconnect point is needed

Master Spas — — For 7" or 8" OD Eco-Pur systems

Hayward Filter Cartridges (Set of 2) for TigerShark and SharkVac Robotic Pool Cleaners | RCX70101PAK2 Immobilizers systems require 7 full gridsThe Hayward Filter Cartridges (RCX70101PAK2) are the OEM replacement filtration cartridges for TigerShark and SharkVac robotic pool cleaners, sold as a set of 2. IMPORTANT: SET OF 2 CARTRIDGES This listing ships as a set of 2 filter cartridges. Confirm the quantity you need before ordering one pack contains the full cartridge set for your cleaner. These cartridges sit inside the robotic cleaner's filter chamber and trap debris, dirt, and fine