This is an Aqua Products large, fine reusable filter bag (8101), size 3, for Aqua Products commercial robotic cleaners. This bag filters down to 2 microns.
The 8101 filter bags are used on their commercial robotic pool cleaners. Models include the AquaMAX X3, Magnum, AquaMAX, AquaMAX BiTurbo, UltraMAX Jr, JetMAX, JetMAX Turbo, DuraMAX, DuraMAX RC, DuraMAX BiTurbo T2 RC, DuraMAX BiTurbo T-RC, DuraMAX Duo Jr, and Power Handi Vac 200.
