Silverline Immersion Heater Box Wrench Spanner 85mm MS121

Silverline 85mm Standard Size Immersion Heater Box Wrench Spanner 558670

MPN: MS121

Barcode: 5024763015922

Product Overview:

The Silverline MS121 Immersion Heater Box Wrench is a purpose-built tool for removing and installing 85mm immersion heater elements. Featuring a six-sided box profile for secure engagement and a strong steel body, this spanner is ideal for use with a tommy bar or adjustable wrench. Its simple yet durable design makes it a must-have for both professional plumbers and DIY users tackling hot water cylinder maintenance.

• Made from heavy gauge steel, (T-Bar box wrench) for fitting or removal of immersion heater elements.
• Box wrench with separate tommy bar has a corrosion-resistant yellow passivated finish for protection.
• No-slot design ensures the removal of power cable from immersion heater prior to removal, reducing the possibility of electric shock.
• Long pattern will reach recessed elements on most hot water cylinders.
• Using a box immersion spanner puts even pressure on the nut stops it deforming and deforming the opening into the tank and costly replacement.

Size:

• 3-3/8 inch - 85-86mm A/F

Key Features:

• 85mm Box Spanner Design – Hexagonal profile fits standard immersion heater elements securely

• High-Strength Steel Construction – Withstands high torque and frequent use

• Cross-Bar Hole for Levering – Can be used with a tommy bar or wrench for extra torque

• Deep Socket Style – Reaches fully over the immersion element for a solid grip

• Corrosion-Resistant Finish – Protects the tool from rust and wear over time

Applications:

• Installing and removing immersion heater elements from water cylinders

• Ideal for hot water tank maintenance and plumbing repairs

• Suitable for use in domestic and commercial plumbing environments

Specifications:

• Product Code: MS121

• Jaw Size: 85mm internal hex

• Material: Hardened steel

• Style: Box spanner with cross-bar hole

• Finish: Zinc-plated or similar anti-rust coating

Frequently Asked Questions:

1. What immersion heaters does it fit?
   It fits most standard UK immersion heater elements with an 85mm hex head.

2. How do I use this tool?
   Slot it over the immersion heater nut and use a tommy bar or adjustable wrench through the hole for leverage.

3. Is it suitable for tight spaces?
   Yes, the low-profile, deep socket design allows it to reach over and engage fully with the heater element.

4. Can I use a power tool with it?
   No, it’s designed strictly for manual operation and should not be used with impact tools.

5. Does it come with a tommy bar?
   No, it is supplied without a bar—you can use any standard rod or bar that fits through the side hole.

6. Is it durable?
   Yes, it's made from strong steel designed to handle repeated use under high pressure.

7. Will it damage the immersion heater nut?
   When used properly, the snug fit reduces the risk of rounding or damaging the nut.

8. Is it suitable for both installation and removal?
   Yes, it is effective for both fitting new heaters and removing old, seized elements.

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