Davey Microlene ETFN9 9" Manual Backwash pH Neutralising Filter with Sacrificial Neutrafil Bed

Low pH corrosive water is corrected by the Davey ETFN9, a manual backwash neutralising filter that elevates pH levels naturally without chemical addition.

A polyglass structural tank with fibreglass wrapping contains sacrificial Neutrafil media that dissolves slowly to neutralise water acidity. The manual rotary multi-port valve allows user-controlled backwashing and rinsing.

Pressures from 1.4 to 6.9 bar drive the system, delivering 20 to 40 L/min without electricity. The 25mm inlet and outlet ports connect to residential plumbing.

The 9 inch by 35 inch tank contains 25kg of Neutrafil media and 5kg of gravel foundation. Backwashing at 16 L/min prevents media compaction and maintains operational flow.

• 9 inch diameter by 35 inch height polyglass structural tank.
• Manual valve rotations for backwashing and rinse cycles.
• 25mm internal riser pipe assembly with basket distributors.
• 25kg Neutrafil media and 5kg gravel foundation.
• 25mm inlet and outlet ports for residential connection.
• 16 L/min backwash flow rate for media maintenance.
• Elevates pH naturally without chemical addition.

Includes a 2 Years warranty for added peace of mind.