HT-NL Series Filters

Commercial & Large Domestic Filters

Hidrotermal’s NL Series is tailor-made for commercial & or large domestic setups.
They can be used for any kind of Water project, aqua/perma-culture, including public Swimming Pools, Water Plants, Fountains and Spa’s. All will benefit from Hidrotermal’s Commercial Sand Filter Line.

Made from Fiberglass, wound and reinforced with resin.
UV-Resistant & Anti-Corrosive allowing a long-life span in high PH, sunlight environment.
ABS laterals.
Equipped with oil manometer.

Improved access, open/close/operating with the improved Hidrotermal Screw Thread design. Built in Purge Cover meaning higher efficiency on air release from the system. Hidrotermal R&D has increased the distance between the top sand layer & the diffuser head “Freeboard” to ensure more effective water distribution during the filtration phase, this also avoids sand contamination during backwash. Hidrotermal have paid special attention to the drain, allowing a more convenient & efficient sand exchange process. Filtering can also be observed through the view port.

Manhole

Viewport Hole

Drain Set

Inlet & outlet Flange

Maximum Operating Pressure: 36psi/2.5bar.
Maximum Operating Water Temperature: ≤43ºC/109ºF.
Note: For reference only. Suggested sand weights vary with different filter media sizes.