Hydro-Logic ARCS Replacement Cartridges Elite 91 Ona Pro Gel is the

Ona Pro Gel is the best product to date and it is all you will ever need

Noticeable increases in yield and quality are easily depicted in side-by-side presentations

Ergonomic hand brush for leaf removal

Beam angle: 120°

Add between 8 to 16 ml of EACH product (A & B)

Hydro-Logic ARCS Replacement Cartridges Elite 91 Ona Pro Gel is the#741608 ARCS Stage 1 Replacement Poly Spun Sediment Filter reduces rust, silt, dirt, sand and sediment. Change every 5,000 gallons of product water. #741610 ARCS Stage 3 Replacement pH Neutralizing Remineralizing Cartridge to balance out and stabilize the pH. Replace every 10,000 gallons of product water. #741612 ARCS Stage 2 Replacement Heavy Metal Reduction Cartridge to remove heavy metals. Replace every 10,000 gallons of product water or as needed.