Aqua Medic Tank Union Tv32 (hole Size Required = 42-45mm)

Description

Aqua Medic Tank Union TV32 (Hole Size Required = 42-45mm) — Mid-size ABS bulkhead for overflow drains in a 42–45 mm hole

A mid-size reef overflow has to carry the full output of the return pump, and a drain bulkhead one size too small is the one that gurgles, backs up and floods the overflow box.Aqua Medic Tank Union TV32 (Hole Size Required = 42-45mm) (SKU: AM41732) is Aqua Medic’s ABS tank union for a connection through aquarium glass where the drilled hole measures 42 to 45 mm. It connects the aquarium to fixed PVC piping and is supplied with a sealing ring and clamping nut, ready to fit. Described by retailers as compact and space-saving, it mounts close to the glass, and once installed a tank can be emptied almost completely through it.

The TV32 sits between the TV25 and TV40 and is sold as the 32 mm size, the step up for drains and returns that carry more water than a small system needs. Rigid PVC pipe glues into the union, or a hose coupling is connected for a flexible run to the sump. The hole needs to be within the 42 to 45 mm range so the sealing ring has a full bearing surface; a chipped or oversized hole is the usual cause of a weep. Toughened glass cannot be drilled, so the panel should be confirmed as annealed glass first. The ABS body will not corrode in salt water and is light enough to sit in thin sump walls as well as display glass.

Usage & Application

When to Use

• Overflow drains: Mid-size drains on reef and fish-only display tanks.
• Sump and refugium returns: Through-wall connections between chambers and tanks.
• Fish-room plumbing: Linking several tanks to a shared PVC manifold.
• Fully drained tanks: A low union that lets the tank empty almost completely.

Installation & Setup Guide

• Confirm the bore: A clean hole of 42 to 45 mm, with no chips on the edge.
• Gasket inside: Seat the sealing ring between the union flange and the glass on the water side.
• Clamp it: Tighten the clamping nut by hand from the dry side until firm.
• Test before gluing: Fill the tank and check for weeps before committing the pipework.

Product Specifications & Highlights

Key Features

• 42–45 mm hole: The common size for overflow drains.
• ABS construction: Will not corrode in marine systems.
• Ready to fit: Sealing ring and clamping nut in the pack.
• Low profile: Compact body for drains close to the base.
• Two ways to connect: Glued PVC pipe or a hose coupling.

Product Details

• Brand: Aqua Medic (Germany)
• SKU: AM41732
• Barcode (GTIN/EAN): 4025901119909
• Product Type: Accessories > Tank Union (Bulkhead)
• Size: TV32 (32 mm)
• Required Hole Size: 42–45 mm
• Material: ABS
• Included: Union body, sealing ring, clamping nut
• Connection: Fixed PVC pipework or hose coupling
• Other Sizes: Tank Union TV25, 32–35 mm hole (SKU AM41725); Tank Union TV40, 55–60 mm hole (SKU AM41740)
• Target Environment: Drilled glass freshwater and marine aquariums, sumps and refugiums