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Internet # 205616001

Model # THD1020

Store SKU # 1001091718

Store SO SKU # 1001092480

1-1/4 to 1-1/2 in. ABS In-Line Sump Pump Check Valve

$16.48
  • Compatible with any 1.25 in or 1.5 in. sump pump
  • Exceptionally durable flapper ensures long-lasting performance
  • Rugged ABS construction with stainless steel clamps
  • View More Details
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Return this item within 90 days of purchase. Read Return Policy
Product Details

About This Product

For sump pump applications the THD1020 can be used with any 1.25 in. or 1.5 in. sump pump. The THD1020 features 1.25 in. or 1.5 in. combination rubber adapters and the industry's most durable check valve flapper. This is the world's most reliable sump pump check valve.

Highlights

  • Can be used with any 1.25 in. or 1.5 in. discharge sump pump
  • 1.25 in. or 1.5 in. combination adapters
  • Fits 1.25 in. or 1.5 in. black, galvanized and DWV Sch. 40 pipe
  • Industries most durable flapper
  • All stainless steel clamps
  • Strong, durable ABS body
  • Millions in service
  • Return Policy

Product Information

Internet # 205616001

Model # THD1020

Store SKU # 1001091718

Store SO SKU #1001092480

Specifications

Dimensions: H 7.15 in, W 2.25 in, D 2.25 in

Dimensions

Inlet Diameter (In.)

1-1/2

Outlet Diameter (In.)

1-1/2

Product Depth (in.)

2.25 in

Product Height (in.)

7.15 in

Product Length (in.)

2.25 in

Product Width (in.)

2.25 in

Details

Application

Sewage

Compatible Pipe Material

Multi-Purpose

Connection

Slip-Joint

Features

Corrosion Resistant

Indoor/Outdoor

Indoor, Outdoor

Material

Acrylonitrile Butadiene Styrene (ABS)

Maximum Pressure (PSI)

25

Maximum Working Temperature (F)

135

Pack Size

1

Product Weight (lb.)

0.613 lb

Returnable

90-Day

Valve Type

Check

Warranty / Certifications

Manufacturer Warranty

Warranted to the original consumer purchases to be free from defects in material and workmanship for a period of one-year from the date of purchase.

Questions & Answers

61Questions
caret
Q:I plan on using this check valve between 1 1/2" PVC input and 2" ABS discharge in a washer drain. Will it work if I replace the discharge flex fitting with a 1 1/2" to 2" flex fitting?
by|Jan 7, 2024
1 Answer
Answer This Question

A:  Hello Chris. This check valve is designed and warranted for use with a sump pump only. It will not work in the application that you propose as you risk flooding.

by|Jan 9, 2024
    caret
    Q:Can you sue this on an upflush toilet waiste line?
    by|Jul 4, 2023
    1 Answer
    Answer This Question

    A:  Hi Chuck. No you cannot. Use our Model THD1058, THD SKU 1001091730 for toilet applications.

    by|Jul 30, 2023
      caret
      Q:Can this be used with the Everbuilt 1/3 hp utility sink pump?
      by|May 13, 2023
      5 Answers
      Answer This Question

      A:  As long as it can be fitted on to the discharge line yes it is a sturdy check valve and can work.

      by|Nov 5, 2023

        A:  Yes it definitely can. And I would recommend it. The check valve that comes with that utility pump is garbage.

        by|Aug 10, 2023

          A:  Of course. This is a check valve. It has little or nothing to do with the pump that’s responsible for running water through it. It’s purpose is to stop water from dropping back down into the sump (due to gravity), once the pump shuts off.  Without a check valve, pumps will cycle far more frequently and often times even hiccup continuously..

          by|Sep 9, 2023

            A:  Yes, but why would you need it? The utility sink pump comes with a check valve.

            by|Aug 8, 2023

              A:  Hello JoeA. No, this check valve cannot be used for that pump. It is designed to be used with sump pumps.

              by|May 13, 2023
                caret
                Q:Can I replace this part with a straight pipe if there are none available near me?
                by|Mar 19, 2023
                1 Answer
                Answer This Question

                A:  Hi Maxwell. We suggest that you install a sump pump check valve to protect against possible flooding. You can order this valve online.

                by|Sep 19, 2023
                  Showing 1-4 of 61

                  Customer Reviews

                  4.6 out of 5

                  • 4.6 out of 975 reviews
                  • 89% recommend this product
                  Filter by:
                  Showing 1-10 of 975 reviews
                  Bad quality
                  The valve PVC broke and my sump pump spray water all over the crawlspace for hours. This had been installed for only 5 months. Do not buy unless you want a water park in your basement/crawlspace.
                  by
                    • Recommended
                    Junk no QC
                    Just over a year old, plastic cracked and water sprayed all over. For all the sump pumps I have installed I have never had this happen with other brands of check valves. No QC? See photos attached
                    by
                      It fit snug around 1.5" PVC pipe. Needed to adjust...
                      It fit snug around 1.5" PVC pipe. Needed to adjust the clamps a bit for 1.25" pipe. Adjust ALL 4 Clamps, don't rely on the placement as is. After sliding and tightening the clamps into position, there are no leaks or back flow. I'm confident this check valve will extend the life of my new sump pump!
                      by
                      Response from JackelJun 29, 2020
                      Hello NWAtlanta. Thank you for the 5 Star Review and kind words. You are absolutely correct; one should adjust / tighten all four clamps prior to use. Thanks for the tip! Jackel
                      • Verified Purchase
                      1 found this review helpful
                      Easy to install, works like a charm. Highly recommended.
                      Easy to install, works like a charm. Highly recommended.
                      by
                      Response from JackelMay 16, 2020
                      Hi Edgar. Thanks for the 5 Star Review and kind words! We really appreciate it. Jackel
                      • Verified Purchase
                      • Recommended
                      1 found this review helpful
                      this check valve has always worked perfectly for me as I have an active sump pump. I replace the ...
                      this check valve has always worked perfectly for me as I have an active sump pump. I replace the valve only when I need to repair or replace the pump as a preventative measure. Easy to install.
                      by
                      Response from JackelApr 19, 2019
                      Hi Husky. Thank you so much for this review. This is the highest complement this product can receive: it works. We appreciate your return business and confidence in our product! Jackel
                      • Verified Purchase
                      • Recommended
                      5 found this review helpful
                      it works!
                      Easy to install as long as you tighten all 4 rings ;)
                      by
                      Response from JackelSep 26, 2018
                      Hi Johnny. Thanks for the review. We really appreciate your business. Jackel
                        • Recommended
                        2 found this review helpful
                        Easy to install. Works great! With some good measuring, and this easy to clamp on attachment, I...
                        Easy to install. Works great! With some good measuring, and this easy to clamp on attachment, I was able to swap out pump that had been working very hard for 6 weeks for a new one, in under 4 minutes, avoiding a wet basement!
                        by
                        Response from JackelAug 22, 2018
                        Hi Drainagesolver. Thanks for the great review! We really appreciate your kind words and your business. Jackel
                        • Verified Purchase
                        • Recommended
                        2 found this review helpful
                        Very good quality check valve. Knowing that a certain percentage of DIYers tend not read the inst...
                        Very good quality check valve. Knowing that a certain percentage of DIYers tend not read the instructions, I thought I would point something out: You generally see this check valve pictured in a vertical position but that is not how it should be installed. Instead, this valve needs to be installed in the horizontal position. Also, make sure to observe the fluid flow arrow. The instructions are quite clear.
                        by
                        Response from JackelMar 27, 2018
                        Hi WiseShopper. Thanks for the review. We appreciate your business. Jackel
                        • Verified Purchase
                        • Recommended
                        13 found this review helpful
                        Working
                        Working
                        by
                        Response from JackelFeb 21, 2018
                        Hi Jack. Thanks for the review. We really appreciate your business Jackel
                        • Verified Purchase
                        • Recommended
                        2 found this review helpful
                        I installed it on a sump pump 1 1/4" discharge pvc pipe for a backyard drain, and it worked just ...
                        I installed it on a sump pump 1 1/4" discharge pvc pipe for a backyard drain, and it worked just fine.
                        by
                        • Verified Purchase
                        • Recommended
                        1 found this review helpful
                        Showing 1-10 of 975 reviews

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