Main
Main Pressure Test Screw 10-12667
Pressure test screw for Main Solent 671, 673 and 673E appliances.
Showing prices
£10.40
£8.67 ex. VAT · VAT at 20%
Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The PRESSURE TEST SCREW - SIT is a pressure test screw manufactured by Main for use with Main Solent appliances. It is fitted as part of the appliance assembly to provide a pressure test point. The part is listed under SKU 10-12667.
Signs this part needs replacing
- Visible leak or weeping at the pressure test screw
- Damaged or rounded screw head
- Difficulty obtaining a stable pressure reading at the test point
- Corrosion or debris around the screw
- Screw fails to seal after pressure testing
Before you order
- Confirm the appliance model is Main Solent 671, 673 or 673E.
- Check the existing pressure test screw for thread condition and damage.
- Confirm the SIT designation matches the part required.
- Have the SKU 10-12667 available when ordering.
Compliance
| GC number | 340-421 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| MAIN SOLENT 671 | 53-476-20 | 53-476-20 | — | — |
| MAIN SOLENT 673 | 53-476-22 | 53-476-22 | — | — |
| MAIN SOLENT 673E | 53-476-23 | 53-476-23 | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.