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Large 2" spring check valve allows for high flow
6-position Multiport valve allows you to backwash
Simply hook up an air pump to the barbed fitting
with no holes to drill
puncture-resistant
Aqua Ultraviolet® Ultra Bio-Media by Aqua Ultraviolet (Not OEM for Ultima II Filters) Size:225 Pounds BULK Large 2" spring check valveNote: Media that comes with Ultima II filters is in 12lb boxes, so replacing with Ultra Bio Media should be done by total weight, not number of boxes Ultra Bio Media for the Aqua Ultraviolet Ultima II Filter is a patented, non wax based plastic media that comes pre seeded with natural bacteria so that it starts working within 2 4 weeks of installation, instead of industry standard 6 weeks! Its unique tubular design prevents clumping and gives it the
