

Filtrec FRT R1 50 tank-top hydraulic return filter with 10 micron cellulose, 2" BSP connection and 340 L/min flow rating. Includes 4-hole tank mounting and MRB radial pressure gauge.
Product Features:
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4-Hole Tank-Mounted Hydraulic Return Filter - 10 Micron Cellulose, 2" BSP, 340 L/min
The Filtrec FRT R1 50 is a tank-top hydraulic return filter configured with 10 micron cellulose, a 2" BSP connection and a rated flow of 340 L/min.
Mounted directly on the tank lid, the FRT filters hydraulic oil on the return line before it re-enters the reservoir, while keeping routine element replacement accessible.

Dimensions & Model Reference
| MODEL | A | Ø B1 | B2 | B3 | Ø D1 | Ø D2 | Ø D3 | H1 | H2 | H3 | M | R | WEIGHT (Kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FRT R1 10 | G 3/8" - G 1/2" G 3/4" | 89 | 28.5 | 51 | 67.5 | 24 | 67 | 82 | 60 | 8 | M6 | 150 | 0.45 |
| FRT R1 11 | 155 | 220 | 0.6 | ||||||||||
| FRT R1 20 | G 1/2" G 3/4" G 1" G 1 1/4" | 115 | 67 | 88.5 | 40 | 87 | 192 | 73 | 11 | M8 | 160 | 0.8 | |
| FRT R1 22 | 137 | 210 | 0.9 | ||||||||||
| FRT R1 30 | 218 | 290 | 1.1 | ||||||||||
| FRT R1 31 | 32 | 322 | 390 | 1.3 | |||||||||
| FRT R1 40 | G 1" - G 1 1/4" G 1 1/2" | 175 | 35 | 95 | 130 | 129 | 223 | 90 | M10 | 300 | 2.1 | ||
| FRT R1 43 | 269 | 350 | 2.4 | ||||||||||
| FRT R1 45 | 436 | 520 | 3.1 | ||||||||||
| FRT R1 50 | G 1 1/4" G 1 1/2" G 2" | 220 | 42 | 115 | 175 | 65 | 174 | 164 | 105 | 250 | 2.9 | ||
| FRT R1 51 | 223 | 310 | 3.3 | ||||||||||
| FRT R1 60 | |||||||||||||
| FRT R1 64 | 273 | 360 | 3.9 | ||||||||||
| FRT R1 66 | 423 | 510 | 5.1 |
Dimensions are in mm unless otherwise stated. The FRT R1 50 row is highlighted for quick reference.
Why Use an FRT Tank Top Return Filter?
Tank-top return filtration captures contamination at the end of the hydraulic circuit before oil returns to the reservoir. This helps reduce recirculation of wear particles and keeps routine filter servicing accessible.
Key Benefits
- 10 Micron Cellulose filtration
- 2" BSP return connection
- Flow rating 340 L/min
- 4-Hole tank mounting
- MRB radial pressure gauge
- Tank-top design keeps servicing accessible
Suitable Applications
- Hydraulic reservoir return lines
- Mobile hydraulic machinery
- Agricultural and forestry equipment
- Industrial hydraulic power units
- Plant and material handling equipment
Technical Specification
| Feature | Details |
|---|---|
| Product Type | Tank top hydraulic return filter |
| Model | FRT R1 50 |
| Filtration | 10 Micron Cellulose |
| Port Size | 2" BSP |
| Flow Rate | 340 L/min |
| Tank Mounting | 4-Hole |
| Maximum Operating Pressure | 8 bar |
| Burst Pressure | 16 bar |
| Bypass Valve | 1.7 bar (B version) |
| Seal | NBR |
| Indicator | MRB pressure gauge, radial connection |
| Overall Installed Height | 269 mm |
| Below-Tank Height (H1) | 164 mm |
| Element Removal Clearance | 250 mm |
| Weight | 2.90 kg |
Sizing guidance: Check the stated flow rate against your oil viscosity, operating temperature and acceptable pressure drop to make sure the filter is suitable for your application.
Need Help Choosing the Correct Hydraulic Return Filter?
Our team can help confirm the correct Filtrec return filter, element, port size and flow rating for your hydraulic system.
Contact Us for expert advice, availability and delivery options.
HOUSING tested according to NFPA T3.10.5.1*, ISO 10771*, ISO 3968
PRESSURE:
Max operating: 8 bar
Burst: 16 bar
CONNECTIONS: G 3/8” ÷ G 2
MATERIALS:
Cover and head: aluminium alloy
Bowl: PA6 reinforced
Seal: NBR (FKM on request)
BYPASS VALVE:
Inbuilt in the filter element
B version 1,7 bar
C version 3 bar
ELEMENT tested according to ISO 11170, 2941, 2942, 2943, 3724,3968,16889, 16908, 23181
FILTER MEDIA:
Inorganic microfiber
G06 - G10 - G15 - G25 - G40
Paper: C10 - C25
Synthetic: M05 - M10 - M15
Metal wire mesh: T60
COLLAPSE PRESSURE: 10 bar
TEMPERATURE RANGE:-30°C +100°C
FLUID COMPATIBILITY: Full with HH-HL-HM-HVHETG-HEES (acc. to ISO 6743/4).For use with other fluid please contact us.
General delivery information
Thank you for visiting and shopping at www.flowfitonline.com. Below are the terms and conditions for the Shipping Policy for Harrier Fluid Power Ltd T/A Flowfit.
Orders are processed and shipped during standard working hours (08:30–17:00 BST), Monday to Friday (excluding Bank Holidays). All orders placed before 4pm Monday to Thursday and 3pm on Friday are normally processed and despatched on the same business day, subject to stock availability.
Build and assembly orders may require additional processing time. This includes, but is not limited to, hydraulic power units, gearbox and pump assemblies, hydraulic hose assemblies, and motor/engine pump sets. Due to current demand, these types of orders are currently experiencing an estimated additional 2–3 working days before despatch.
During periods of particularly high order volumes, delivery times may be extended further. Please allow additional time in transit for delivery once your order has been despatched.
If your order is extremely urgent and next-day delivery is critical, please contact our Sales Team before placing your order. We will do our best to accommodate your requirements and advise whether we can meet your requested delivery date.
If there will be a significant delay to your order, we will contact you via email or telephone.
United Kingdom delivery rates & estimates
| Service | Price | Terms |
|---|---|---|
| FREE Delivery | FREE | Free UK delivery is available for orders over £99.99+ VAT. Delivered in 1 -2 working days. |
| Express Delivery | £9.99 + VAT | UK Mainland delivery for orders under £99.99 + VAT. Delivered in 1 -2 working days. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day. |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day. |
| Channel Islands | ||
| Standard Delivery | £20.95 + VAT | Delivery in 2–3 working days. |
| UK Highlands & Isles | ||
| Order value below £99.99 + VAT | £31.95 + VAT | Delivery in 2–3 working days. |
| Order value over £99.99 + VAT | £28.95 + VAT | Delivery in 2–3 working days. |
* Overnight delivery is only available for certain delivery addresses within the United Kingdom. Please contact us beforehand to confirm eligibility.
Email sales@flowfitonline.com or call 01584 876 033.
Collection: Customers are welcome to arrange collection using a courier of their choosing, or collect in person from our depot in Ludlow, Shropshire. Please advise us in advance so we can ensure your order is complete before collection.
International delivery rates & estimates
Shipping charges depend on weight and destination country and are calculated and displayed at checkout. Orders for delivery within the EU typically arrive on a 2–5 day service (depending on the destination). Shipments outside the EU typically arrive on a 3–7 day service (depending on the destination).
Please contact our Sales team for accurate delivery times. If your parcel has not arrived within the expected timeframe, please get in touch. Please ensure the shipping address entered at checkout is correct; we are not responsible for incorrect or undeliverable addresses.
Customs, duties and taxes
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling costs. These charges are the buyer’s responsibility. You may check with your country’s customs office to determine any additional costs.
By placing an international order (shipping outside the United Kingdom), the buyer is responsible for complying with their country’s laws, regulations, and restrictions. If a product is seized and destroyed by customs, we will not be responsible for losses, products, or shipping refunds.
Shipment confirmation & order tracking
You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). Tracking will be active within 24 hours.
Working closely with top carrier experts
We use some of the top carrier companies in the world, although you can also use your own carrier to collect your order. All deliveries require a signature on delivery. Below are our main carrier companies.

Damages
Harrier Fluid Power Ltd T/A Flowfit is not liable for products damaged or lost during shipping. If you receive your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
Returns policy
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.
View the Filtrec Technical PDF for dimensions, pressure-drop data and ordering information.
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