ISTA CO2 Diffuser (3 in 1) V Shaped - Large (I-552) Bird Cages the pond spikes have no

the pond spikes have no adverse effect on water quality and are non-toxic to fish and plant life

Item Number: NT-13S Size: Extra Large (Fits NT-13

Lifegard 1" Slip Bulkhead with Insert - Pond Fittings

5mm per pellet

ISTA CO2 Diffuser (3 in 1) V Shaped - Large (I-552) Bird Cages the pond spikes have no3 in 1 Compact V CO2 Diffuser L Features Functions of CO2 bubble counter, check valve and diffuser in one unit. Specific ceramice applied to assures most delicate CO2 diffusing effect. Made of transparent acrylic which provides precise, clear and easy CO2 bubble reading. Easy and simple in cleaning, changing the ceramic or water filling. Replacement ceramic item # IS00891 Most reliable funciton of stopping backflow and syphonign, design of stainless