For Loading Media
The U1006 Funnel has an outer diameter which allows it to slip inside the standard 2.5" water softener or filter tank top threads faciliting easy loading of resin or any media.
Premium Grade Strong Acid Cation Exchange Resin With 10% Cross linking
Purolite A850 Gelular Tannin Resin - 1 Cu/Ft Box
ResinTech Arsenic Selective Resin - 1 Cubic Foot