
U.S. Seal Single Rated Run Capacitor, 20 MFD 370V, RD-20-370
30 day returns · Easy, with prepaid labels provided
Quick overview
- Run capacitor A single rated run capacitor rated 20 MFD.
- 370V rating Rated for 370V.
- Round capacitor size Measures about 1-3/4 in by 2-7/8 in.
- U.S. Seal part RD-20-370 Manufactured by U.S. Seal under part number RD-20-370.
- Keeps the motor running A run capacitor stays in the circuit to keep the motor running smoothly once started.
- Sold individually Ships as a single capacitor.
Need a hand?
Frequently bought together

U.S. Seal Single Rated Run Capacitor, 20 MFD 370V, RD-20-370
Similar products
Other products people compare with this one.
Century 1-1/2 HP 3450 RPM 56Y Frame Square Flange Pool Pump Motor, 115/230V, B2854V1$35099
Jandy Lid & Lock-Ring Assembly with Seal, PHPF/PHPM, R0448800$7899
Polaris Front Housing Volute Cover with O-Ring, R0536300$6899
Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199
Century VGreen Evo Variable Speed 1.65 THP Square Flange Pool Pump Motor, 230/115 V, 48Y Frame, EVQ165$63899
Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$29699
Jandy Lid & Locking Ring Assembly with O-Ring, R0445800$12099
Century 56Y Frame ODP Square Flange Pool & Spa Pump Motor 2HP 230V, B2855$42499
Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198$3899
Jandy Pump Housing Body for FHPM FloPro & VS FloPro, R0479800$25699
SuperPro Superflo / Supermax Pump Repair Kit, GO-KIT78$2299
CMP Pump Union, Threaded 2" MPT x 2" Slip, CPVC, 21063-200-000$2099
Pentair OptiFlo Strainer Pot with Drain Plug, 357228Z$4199
Jandy Pump Body for Stealth SHPF/SHPM Pumps, R0445601$39399
CMP Pump Union CPVC 1-1/2" Slip by Male Thread with O-Ring, 21063-154-000$1799
Waterway 6 in. Pump Trap Assembly, 2 in. x 2 in. Ports, 310-6600$7399
Pentair Challenger Front Housing, Slip Suction, Black, 355468Z$14399
U.S. Seal PS200 Mechanical Seal Assembly$1299
Sta-Rite Pump Tank Body Housing Assembly, IntelliPro, 17307-0110S$31399
U.S. Seal PS1000 Shaft Seal Assembly$699
Product details
The U.S. Seal RD-20-370 is a single rated run capacitor rated 20 MFD at 370V, measuring about 1-3/4 in by 2-7/8 in.
What it does
A run capacitor stays wired into the motor circuit the whole time the motor operates, helping keep it turning smoothly rather than giving it a one-time starting boost the way a start capacitor does. Capacitors like the RD-20-370 are commonly used with pool and spa pump motors.
Before you order
This listing is for the RD-20-370 run capacitor only, rated 20 MFD at 370V and sized about 1-3/4 in by 2-7/8 in, sold individually. Match the capacitance, voltage and size of your existing capacitor before ordering a replacement.
| Brand | U.S. Seal |
|---|---|
| Manufacturer part number | RD-20-370 |
| Type | Single rated run capacitor |
| Capacitance | 20 MFD |
| Voltage rating | 370V |
| Dimensions | 1-3/4 in x 2-7/8 in |
| Selling unit | Sold individually |
| Shipping weight | 0.3 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
Customer reviews
More from US Seal
U.S. Seal PS200 Mechanical Seal Assembly$1299
U.S. Seal PS1000 Shaft Seal Assembly$699
U.S. Seal Pump Shaft Seal Assembly PS201$699
U.S. Seal Heavy Duty Mechanical Seal Assembly (PS200), PS-3867$1599
U.S. Seal Heavy Duty Seal Assembly, PS-3868$1999
U.S. Seal PS-851 Seal Assembly$1199
U.S. Seal Mechanical Seal, 13/16" ID (Generic), PS-4231$2599
U.S. Seal Shaft Seal Assembly (Generic), PS-3890$2299
U.S. Seal Heavy Duty Salt and Ozone Service Shaft Seal, Viton Carbon, PS-3865R$1599
U.S. Seal Mechanical Seal, 5/8" ID (Generic), PS-4231-OS$1999
U.S. Seal Run Capacitor 50 MFD 370V, RD-50-370$4299
U.S. Seal Run Capacitor, 30 MFD, 370vac, 5VR0303$3099
U.S. Seal Shaft Seal Assembly, 3/4" Shaft, PS-601$1999
U.S. Seal Run Capacitor 25 MFD 370V Round, RD-25-370$2799
U.S. Seal Shaft Seal Assembly, 3/4" Shaft, Extra Heavy Duty, Saltwater/Ozone Pools, PS-3986$2799
U.S. Seal 6203 Motor Bearing, RBL-6203-LL$1299
U.S. Seal PS100 Replacement Pump Seal Assembly$699
U.S. Seal Shaft Seal Assembly PS2131$1599
US Seal CAPACITOR 35MFD 370V ROUND | RD-35-370$3599
US Seal ASSEMBLY 3/4" CUP MTD | PS-201V-CMS$2899
Questions and answers
What people ask about this product, answered by our pool techs.
Is this a start or run capacitor?
What size is it?
What is the part number?
Is it sold individually?
Get your unadvertised price ›






