Aqua Medic Tank Union Tv25 (hole Size Required = 32-35mm)

Description

Aqua Medic Tank Union TV25 (Hole Size Required = 32-35mm) — Compact ABS bulkhead for taking PVC pipework through a 32–35 mm hole

A drilled tank or sump is only as reliable as the fitting through the hole, and a weeping bulkhead inside a cabinet is the leak nobody notices until the floor is wet. Aqua Medic Tank Union TV25 (Hole Size Required = 32-35mm) (SKU: AM41725) is an ABS tank union, or bulkhead, for making a connection through aquarium glass, sized for a drilled hole of 32 to 35 mm. It links the aquarium to fixed PVC piping and comes with its sealing ring and clamping nut, so the body, seal and nut are all in the pack. Retail listings describe it as compact and space-saving, and note that with the union installed a tank can be drained almost completely through it.

The TV25 is the smallest of the three Aqua Medic unions carried here, sold as the 25 mm size, and suits drains, returns and closed loops on small to mid-size systems. Rigid PVC pipe is glued into it to hard-plumb the tank, or a hose coupling can be connected where flexible hose is preferred. The hole must fall within the 32 to 35 mm range: smaller and the body will not pass through, larger and the seal has too little glass to bear on. Only annealed (float) glass can be drilled; toughened glass shatters, so the tank maker’s specification should be checked before any hole is cut. ABS does not corrode, which suits the union to salt water as well as fresh.

Usage & Application

When to Use

• Drilled tanks and sumps: A through-glass drain or return in a 32–35 mm hole.
• Hard-plumbed systems: Connecting the tank to fixed PVC pipework.
• Near-complete draining: A low connection that lets a tank or sump empty almost fully.
• Replacing a tired bulkhead: A fresh seal and nut on an existing hole of the right size.

Installation & Setup Guide

• Check the hole: 32 to 35 mm, clean-edged and free of chips.
• Seal on the wet side: Place the sealing ring between the flange and the glass inside the tank.
• Tighten by hand: Run the clamping nut up firmly from outside without over-tightening.
• Leak-test first: Fill and check the union before the pipework is glued in permanently.

Product Specifications & Highlights

Key Features

• 32–35 mm hole: The smallest of the TV25, TV32 and TV40 sizes.
• ABS body: Rigid and corrosion-free in fresh or salt water.
• Complete set: Sealing ring and clamping nut included.
• Space-saving: Compact enough for small sumps and tight cabinets.
• Pipe or hose: Glue in PVC pipe or attach a hose coupling.

Product Details

• Brand: Aqua Medic (Germany)
• SKU: AM41725
• Barcode (GTIN/EAN): 4025901119893
• Product Type: Accessories > Tank Union (Bulkhead)
• Size: TV25 (25 mm)
• Required Hole Size: 32–35 mm
• Material: ABS
• Included: Union body, sealing ring, clamping nut
• Connection: Fixed PVC pipework or hose coupling
• Other Sizes: Tank Union TV32, 42–45 mm hole (SKU AM41732); Tank Union TV40, 55–60 mm hole (SKU AM41740)
• Target Environment: Drilled glass freshwater and marine aquariums and sumps