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One we recommend constantly for growers upgrading from budget filters
Rollers: Neoprene rubber
giving it a nitrogen and potassium profile suited to bloom without added phosphorus in the bottle itself
three units hit 69+ lbs/hr
then loaded with slow-release organic fertilisers
Bluelab Combo Meter Plagron One we recommend constantly forBluelab Combo Meter One Handheld Pen for pH, EC and Temperature Best for: hobby and mid level growers who want pH, conductivity and temperature readings from a single handheld meter instead of juggling three separate pens. Our thoughts This is the meter a lot of growers graduate to once they're tired of carrying a pH pen in one pocket and an EC pen in the other. It's not cheap, but it earns its keep by cutting your daily reservoir check down to one
