Matala Hakko Self-Weighted Diffuser Discs Size:3" Diameter Each tablet treats 1/8 acre

Each tablet treats 1/8 acre for 2 weeks

Flow A50073 617750500737 Ultima II 1000 500-1000 gallons 500gph-1200gph 1000gph A50019 617750500195 Ultima II 2000 1000-2000 gallons 1000gph-2500gph 2000gph A50003 617750500034 Ultima II 4000 2000-4000 gallons 2000gph-4500gph 4000gph Manual Dimensions Parts List

these diffusers are easy to clean

Pure Pond balls work particularly well when used within the Nexus™ filtration system to help smooth out any peaks and troughs in the ammonia/nitrite cycle

Some assembly required

Matala Hakko Self-Weighted Diffuser Discs Size:3" Diameter Each tablet treats 1/8 acreMatala Hakko Self Weighted Disc Diffusers are EPDM air diffuser assemblies that feature weighted bases that help keep the diffusers anchored to the bottom and right side up. We recommend the MD 3W up to 7LPM, MD 5W up to 25 LPM, and the MD 7W to 40 liters of air per minute. Produces medium bubbles, reducing back pressure on the pump SKU Membrane Diameter Connection Net Weight MD 3W Silicone 3" 3 16" 0. 47lb MD 5W EPDM 5" 3 8" 2. 36lb MD 7W 7" 3 8" 3.