Menu
Skip to main content
phone.svg 015395 66193email.svg sales@flowjet.co.uk
FacebookTwitterBlogYoutube
All Products
Brands
Machine Repair
Size Charts
Offers
Contact Us
Type to search
Type to search

Shop popular:

NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service Kits

Free UK Delivery Over £200

Speak to an Expert: 015395 66193

Finance Available

Rated 4.8 on Google

Adaptors, Connectors & CouplingsAdaptors, Connectors & Couplings
Suttner ST45 ⌀ 20 mm (Popular)

Suttner ST45 ⌀ 20 mm (Popular)

Shop ST45 quick release couplings, plugs and replacement O-rings for pressure washer connections. Browse 20 mm plug options alongside coupling bodies with various thread sizes, materials and pressure ratings. Match the plug to the correct coupling series and check each product’s connection and rated pressure before ordering.

ST45 Female Quick Release CouplingsQuick Release Probes & PlugsST45 Quick Coupling Spares

27 products

ST45 quick coupling plug 3/8 inch female stainless steel HP quick release Nilfisk compatible fitting

ST45 QUICK COUPLING PLUG 3/8"F

SKU: 5572092
Available on backorder
£28.32 inc. vat£23.60 ex vat
Nilfisk Style High Presssure Quick Release

ST45 Quick Release Coupling With Grey Collar 3/8"F 250 Bar

SKU: 200045801
In Stock
£24.00 inc. vat£20.00 ex vat
ST45 QUICK RELEASE PRESSURE WASHER COUPLING-1/2"F

ST45 QUICK RELEASE PRESSURE WASHER COUPLING-1/2"F

SKU: 5571911041
In Stock
£36.12 inc. vat£30.10 ex vat
106404758 Nilfisk Quick Release

Nilfisk Quick Release Ergo 3000 Pressure Washer Coupling- 3/8" Female

SKU: 106404758
In Stock
£26.53 inc. vat£22.11 ex vat
Pressure Washer Twin Outlet Kit

Pressure Washer Twin Outlet Kit

SKU: 204-1015
In Stock
£219.96 inc. vat£183.30 ex vat
TEMA PROBE 1/2" F

TEMA PROBE 1/2" F

SKU: TEM5020
In Stock
£28.80 inc. vat£24.00 ex vat
TEMA PROBE 3/8" F

TEMA PROBE 3/8" F

SKU: TEM03
In Stock
£9.36 inc. vat£7.80 ex vat
O-RING FOR ST45 QUICK RELEASE COUPLINGS, PACK OF 100, SIZE: LARGE

O-RING FOR ST45 QUICK RELEASE COUPLINGS, PACK OF 100, SIZE: LARGE

SKU: 792025100
In Stock
£60.24 inc. vat£50.20 ex vat
ST45 Quick Coupling Plug 1/2"M

ST45 QUICK COUPLING PLUG 1/2"M

SKU: 557206
In Stock
£22.80 inc. vat£19.00 ex vat
Pressure Washer Quick Coupling 3/8" M

ST45 QUICK RELEASE COUPLING 3/8" MALE

SKU: 200045595
In Stock
£49.56 inc. vat£41.30 ex vat
O-RING FOR ST241 & ST45 QUICK COUPLINGS, PACK OF 100

O-RING FOR ST241 & ST45 QUICK COUPLINGS, PACK OF 100

SKU: 791025100
Available on backorder
£114.36 inc. vat£95.30 ex vat
ST45 Quick Release Coupling, stainless steel, 1/2" female inlet. Handles 250 Bar pressure and temperatures up to 150°C. Suitable for 20mm male plugs, with blue color for easy identification. Robust and durable for high-pressure applications.

ST45 QUICK RELEASE PRESSURE WASHER COUPLING 1/2"F

SKU: 200045555
In Stock
£41.16 inc. vat£34.30 ex vat
ST45 QUICK COUPLING PLUG 1/4"MALE

ST45 QUICK COUPLING PLUG 1/4"MALE

SKU: 040005669
In Stock
£31.68 inc. vat£26.40 ex vat
Kew250 ST45 O-Ring Green Viton Large Pack Of 100

O-RING FOR ST45 QUICK RELEASE COUPLINGS, PACK OF 100, SIZE: LARGE

SKU: 792025100G
Available on backorder
£68.64 inc. vat£57.20 ex vat
NITO PROBE M22 Female - Quick Release (⌀ 20mm) Outlet

NITO PROBE M22 Female - Quick Release (⌀ 20mm) Outlet

SKU: 65632B9
In Stock
£14.04 inc. vat£11.70 ex vat
ST45 QUICK RELEASE PRESSURE WASHER COUPLING PLUG 1/4"F

ST45 QUICK RELEASE PRESSURE WASHER COUPLING PLUG 1/4"F

SKU: 040005482
Available on backorder
£27.00 inc. vat£22.50 ex vat
ST45 Quick Coupling Plug ½" Female – Stainless Steel (20mm) | Suttner & Tema

ST45 Quick Coupling Plug ½" Female – Stainless Steel (20mm) | Suttner & Tema

SKU: 55729
In Stock
£21.84 inc. vat£18.20 ex vat
Pressure Washer Quick Release Male Probe

ST45 QUICK RELEASE COUPLING PLUG 3/8"F STAINLESS STEEL (20 mm OD

SKU: 557209
In Stock
£17.04 inc. vat£14.20 ex vat
Quick Release Pressure Washer Hose Adaptor - M22 Female

ST45 Quick Coupling Adaptor – M22 Female (14mm) to ST45 Quick Release Male (20mm)

SKU: 557205
In Stock
£11.64 inc. vat£9.70 ex vat
Quick Release Coupling Probe For Pressure Washers

ST45 QUICK RELEASE COUPLING PLUG 3/8"F ZINC PLATED (20 mm OD)

SKU: 557204
In Stock
£4.68 inc. vat£3.90 ex vat
ST45 STAINLESS STEEL QUICK RELEASE PRESSURE WASHER COUPLING-3/8" F EPDM

ST45 STAINLESS STEEL QUICK RELEASE PRESSURE WASHER COUPLING-3/8" F EPDM

SKU: 557109
In Stock
£38.40 inc. vat£32.00 ex vat
ST45 QUICK RELEASE PRESSURE WASHER COUPLING M22 M

ST45 QUICK RELEASE PRESSURE WASHER COUPLING M22 M

SKU: 557105
In Stock
£23.64 inc. vat£19.70 ex vat
ST45 QUICK RELEASE COUPLING 3/8" Female

ST45 QUICK RELEASE COUPLING 3/8" Female

SKU: 557103
In Stock
£19.68 inc. vat£16.40 ex vat
ST45 QUICK RELEASE PRESSURE WASHER COUPLING-M22F

ST45 QUICK RELEASE PRESSURE WASHER COUPLING-M22F

SKU: 200045575
In Stock
£42.48 inc. vat£35.40 ex vat
Pressure Washer Quick Release Coupling

ST45 QUICK COUPLING-1/4"

SKU: 200045570
In Stock
£43.68 inc. vat£36.40 ex vat
ST45 STAINLESS STEEL QUICK RELEASE COUPLING 3/8" FEMALE - ⌀ 20MM

ST45 STAINLESS STEEL QUICK RELEASE COUPLING 3/8" FEMALE - ⌀ 20MM

SKU: 200045565
In Stock
£45.00 inc. vat£37.50 ex vat
ST45 Quick Coupling – 3/8" Female BSP, Nickel-Plated Brass with Blue Collar

ST45 Quick Release Coupling – 3/8" Female BSP, Nickel-Plated Brass (250 Bar, Blue Collar)

SKU: 200045505
In Stock
£21.24 inc. vat£17.70 ex vat
Page 1 of 1

Get 10% Off Your First Order

Join our trade list for new-stock alerts, clearance deals and expert cleaning tips. View our Privacy Policy. Unsubscribe at any time.

Flowjet Cleaning Equipment is a family-run

business dealing in commercial and industrial

Pressure Washers

Customer Service
Contact UsAbout UsOur BrochuresServicing & RepairMachine Collection & Repair ServiceFinance
Charts and Drawings
Pressure Washer Nozzle ChartFoam Nozzle Size ChartParts DrawingFAQsDrone Cleaning Equipment
Information
Delivery & ReturnsTerms & ConditionsPrivacy PolicyCookie Policy
Address

Unit 4, Gatebeck Farm, Gatebeck,

Gatebeck, Kendal, LA8 0HW

phone.svg 015395 66193
© 2026. Flowjet Cleaning Equipment Ltd. All rights reserved. Company No. 07548943 / VAT No. 946227313Built by Vitara Commerce
FacebookTwitterBlogYoutube

PROMO: Get 10% OFF

Would you like to save 10% on your order today? Enter your email address to receive a discount code!

By signing up, you agree to receive marketing emails. View our privacy policy and terms of service for more info.