For those of you using a Chloramine Monster (or Pentek CRFC20-BB Carbon Filter Cartridge), and put it after sediment and before regular 10" carbons... if testing 0 chlorine after Monster, then the regular 10" carbons would never have to be changed?
For those interested in Chloramine Monster, it's much cheaper to DIY. Save about $100
Pentek CRFC20-BB Carbon Filter Cartridge $113 Amazon
Pentek 20" Big Blue Housing $40 Freshwatersystems (you can get clear or black but it costs more, also the blue plastic is stronger than the clear)
2 x Reducing Bushing, 3/4 X 1/4 In, Poly, Black $3.45 each Grainger (Depending on Housing, could be 1" x 1/4" needed)
2 x John Guest Quick Connect 1/4 x 1/4 threaded (I bought a 10 pack for $10 on eBay, HD about $4 each)
Wall Bracket Big Blue $10 BRS
4 x BOLT FOR 10 AND 20” BIG BLUE RO CANISTERS - 5⁄16" X 1 1⁄4" $0.69 each BRS (or HD probably same or cheaper)