Tower
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£11.28A compact, low‑cost 12‑way junction box for central‑heating control wiring. The Tower WIR12JB provides 12 double screw terminals (10 A rated) with 2×1.5 mm² terminal capacity, four cable entries and cable restraints — ideal for tidying thermostat, programmer and valve/pump control wiring inside cupboards or small control panels.
12 Way Wiring Centre
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£14.95A compact purpose‑built junction box for central‑heating control wiring, the Tower WIRERITE WIR16JB gives installers a tidy, labelled place to terminate programmers, thermostats, valves, pumps and boiler feeds. It’s supplied with pre‑linked neutral and earth terminals and a mix of in‑wall and surface knockouts with cable restraints, making it suitable for S‑plan and Y‑plan systems where neat, serviceable wiring is important.
16 Way Junction Box
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£5.79A compact, low‑cost intermediate wiring box designed for heating control wiring. The Tower (TFC Group) JB6W provides six double screw terminals (rated 10 A) and accepts conductors up to 2 × 1.5 mm²; it’s intended for neat termination of multi‑core thermostat, programmer and valve wiring in indoor installations.
6 Way Wiring Centre
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£15.49A compact automatic bypass valve for domestic central‑heating systems. The Tower ABBV1 (22mm) opens to a preset differential (0.1–0.6 bar) to maintain minimum boiler flow, reduce TRV/zone‑valve noise and protect pump and heat‑exchanger. It fits in a bypass loop after the pump and has lockable adjustment for consistent settings.
ABBV1 auto-bypass valve
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£15.59A compact 22mm straight automatic bypass valve for domestic central‑heating systems. It maintains a controlled minimum flow through the boiler by opening to bypass water when TRVs or zone valves increase system resistance, reducing noise and protecting the pump and heat exchanger.
The valve offers an adjustable differential range (0.1–0.6 bar), up to 50 L/min capacity and lockable settings, and is supplied with 22mm compression connections for straightforward inline installation.
ABBV1ST auto-bypass valve
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£20.05A compact in‑line automatic air separator for 22mm copper central‑heating pipework (Tower AIR22). It continuously collects and vents entrained air to the feed & expansion tank, reducing noise, airlocks and pump cavitation — intended for open‑vented systems and supplied for soldered connections only.
Air Separator 22mm & 28mm
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£34.99A compact automatic air separator for 22mm copper central‑heating pipework with an integrated 15mm cold‑feed inlet. It passively coalesces and removes entrained air to reduce radiator noise, air locks and pump wear; the unit is supplied for soldered installations and is intended for open‑vented (conventional) systems.
Air Separator 22mm With Cold Feed
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£15.95A pair of anthracite‑finished angled manual radiator valves (Tower / TFC Group, Product code MRVM‑A) intended for 15mm pipe and 1/2″ BSP radiator tails. They’re a straightforward, colour‑matched option for installations where the pipework meets the radiator at a right angle and where manual flow/isolation is acceptable.
Anthracite Angled Radiator Valves
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£15.95A pair of straight manual radiator valves in anthracite (Tower MRVMST-A). Designed for 15mm-to-1/2″ BSP radiator connections, they provide simple mechanical flow control and a contemporary finish to match anthracite radiators and towel rails.
Anthracite Straight Radiator Valves
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£69.95A compact, ERP‑compliant permanent‑magnet circulator for domestic central‑heating systems. The APUMPHE offers a 1.5″ G1 (BSP) flange with 130 mm port spacing, a maximum head of 6 m and up to 3.0 m³/h flow; an internal differential‑pressure controller lets it auto‑modulate between low and high power to cut running costs and noise.
APUMPHE High-Efficiency Pump
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A compact combined air vent and stainless‑steel debris filter for 22mm domestic heating pipework. The Tower AIREL passively removes entrained air and non‑magnetic particles while maintaining high flow; it’s a practical complement to a magnetic filter for fuller protection of boilers, pumps and radiators.
Automatic Air Separator 22mm
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£22.99A small welded wire mesh cage finished in brown plastic coating, the Tower TGDOF1644 is designed to sit around an external boiler pressure‑relief or overflow terminal to prevent accidental contact with hot discharge. It offers weather resistance and a visible, unobtrusive barrier while leaving the outlet unobstructed.
Boiler Overflow Guard 16″
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£13.79A compact wire cage that fits around a boiler pressure‑relief or overflow outlet to prevent accidental contact with hot discharge water. The TGDOF843 is made from mild steel with a brown plastic coating and measures 204mm x 102mm x 76mm (8″ x 4″ x 3″). It’s intended for domestic installations, particularly condensing gas boilers where a plastic‑coated finish is recommended.
Boiler Overflow Guard 8″
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£114.95A compact bronze‑body hot‑water recirculation pump that combines corrosion‑resistant construction with a high‑efficiency permanent‑magnet motor and an automatic differential‑pressure controller. Designed for domestic secondary return loops, it delivers instant hot water to distant outlets while keeping electricity use low (auto‑adapting roughly 5–45 W) and operating quietly.
Best paired with a short‑run timer and a pipe thermostat on the return loop to reduce running hours and avoid unnecessary tank cycling.
Bronze Recirc Pump
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£21.19Tower’s CGDK circular flue terminal guards are simple protective cages for accessible boiler flue terminals. Available in zinc-plated, brown plastic-coated (including high-level mesh versions) and stainless steel, they’re sized to suit common domestic circular terminals and intended to help meet BS 5440-1 and Building Regulations clearance requirements.
Circular Flue Terminal Guards
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£16.95Pair of manual corner radiator valves (product code MRVC) finished in hand‑polished chrome. They provide a simple wheel‑head on/off and flow control for radiators where the feed comes from the wall — standard 15mm inlet and 1/2″ BSP radiator tail, rated to 120°C and 10 bar.
Corner Radiator Valves
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£17.50A pair of anthracite-finish manual corner radiator valves (Tower product code MRVC-A) designed for 15mm pipework and 1/2″ BSP radiator inlets. They give a discreet, right-angled connection for wall- or floor-entry pipework and are specified for domestic systems up to 120°C and 10 bar.
Corner Radiator Valves Anthracite
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£3.99A simple pair of manual corner radiator valves from Tower (product code MRVC‑B), finished in black. They are intended for pipework entering from the wall, offer 15mm pipe connections and 1/2″ BSP radiator threads, and are rated to 120°C and 10 bar — suitable as an economical non‑thermostatic option for domestic and light commercial heating systems.
Corner Radiator Valves Black
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£24.95A compact dual‑fuel corner valve set for ladder towel rails that lets the same radiator be served by central heating or an electric element. Brass construction with a polished chrome finish; 15mm compression to the pipes and 1/2″ BSP tails to the radiator. Supplied as an angled valve pair to simplify installation and avoid a separate T‑piece.
DFV – Dual Fuel Valve
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A compact repair kit for Tower diverter valves intended to replace worn internal parts and restore correct switching between heating and hot water circuits. It’s listed for the Tower trade range (product code DVRK1) and is commonly used on a number of CB and CD series boilers where the symptom is a leaking or sticking diverter valve.
Designed for use by competent heating engineers, it’s a low‑cost spares option that can avoid replacing the whole valve when the fault is internal wear.
DVRK1 Diverter Valve Repair Kit
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£9.99A pair of 90° brass push‑fit valve elbows for neat radiator pipe routing. Available in Chrome, Anthracite and Black, the ELB1 variant adapts 15mm male to 10mm female and ELB2 adapts 15mm male to 15mm female, making them a quick install solution where compact, decorative connections are required.
ELB1 & ELB2 90 Degree Elbows
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£34.79A high‑level terminal guard from Tower (TFC Group) is a simple, regulation‑led protective cover for condensing boiler flue terminals that are within reach. The HLBRM variant is a brown plastic‑coated guard with mesh infill, designed to give physical protection while resisting condensate corrosion better than plain zinc finishes. Choose the correct guard size (for example CGDK3HLBRM or CGDK6HLBRM) to match the terminal and preserve the minimum 50 mm clearance required by BS5440‑1:2008.
High Level Terminal Guards
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A straightforward family of steel, nitrogen pre‑charged expansion vessels for domestic sealed hot‑water and central‑heating systems. Available in 8 L, 12 L, 19 L and 24 L sizes (product codes EV8, EV12, EV19, EV24), they have 1‑inch connections, a 10 bar maximum working pressure and are intended to stabilise pressure and absorb thermal expansion in small to medium systems.
Hot Water Expansion Vessels
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£59.95A passive, in‑line magnetic and mesh filter for heat‑pump and sealed central‑heating systems. The HPFILT (28mm) uses a 12,000‑gauss removable magnet plus 300µm and 800µm mesh elements to trap ferrous and larger non‑ferrous debris, protecting pumps and heat exchangers and simplifying annual maintenance.
Designed for vertical installation on 28mm return pipework, it includes two Ø28 compression ball‑valves, brass service fittings and a drain‑off for easy cleaning.
HPFILT – Heat Pump Magnetic Filter
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