WISY Vortex Extension Tube (WFF 100/150)
The extension tube will connect to Wisy Vortex 100 and 15 and is used to bring the Filter lid to grade on below ground installations.
The extension tube has “cut grooves” every ¾” (20mm) which allow the extension tube to be cut to match grade or desired height.
The extension tube is a 20″ high section. A maximum of (3) extension tubes can be used.
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