Skip to content
Shop Your Local Store ● Ship to Your Hometown Store
Pro & Contractor Accounts ● Apply for Net Terms
100,000+ Products ● Trusted Authentic Brands
FAQ Shipping & Returns Order Lookup Contact Account
Shop the Collection
Shop Local. Support Independent. 21 products available
Test Plugs

Shop 21 test plugs at National Hardware Group — from trusted brands like Campbell, Charlotte Pipe, Cherne and more. Every item is an authorized, warranty-backed purchase, with prices starting around $4.99. Ships nationwide, free over $75 on most items, or find it at your local store.

Trusted brands only Ships nationwide Pro accounts welcome Support your local hardware store
21 products
Charlotte Pipe 1-1/2 in. PVC Test Cap
USA

Charlotte Pipe

Charlotte Pipe 1-1/2 in. PVC Test Cap

MPN: PVC 00131 0600

$5.99
Charlotte Pipe 3 in. PVC Test Cap
USA

Charlotte Pipe

Charlotte Pipe 3 in. PVC Test Cap

MPN: PVC 00131 1000

$5.99
Campbell 1/2 in. FPT X 1/2 in. D IPS Plastic Stand Pipe Backflow Preventer
In-Store

Campbell

Campbell 1/2 in. FPT X 1/2 in. D IPS Plastic Stand Pipe Backflow Preventer

MPN: BF4

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Campbell 4 in. Black Plastic Basement Flood Stopper
In-Store

Campbell

Campbell 4 in. Black Plastic Basement Flood Stopper

MPN: BF4U

Check with your local store Sold in stores — they stock it, price it fair, stand behind it.
Find a Local Dealer
Cobra 2 in. Rubber Test Plug

Cobra

Cobra 2 in. Rubber Test Plug

MPN: PS2406

$6.59
Cobra 3 in. Rubber Econo Plug

Cobra

Cobra 3 in. Rubber Econo Plug

MPN: PS2407

$10.99
Cobra 4 in. Rubber Econo Plug

Cobra

Cobra 4 in. Rubber Econo Plug

MPN: PS2408

$11.99
Cobra 1-1/2 in. Rubber Econo Plug

Cobra

Cobra 1-1/2 in. Rubber Econo Plug

MPN: PS2405

$7.99
Danco PlugAll 1-1/2 in. D Plastic Test and Seal Plug

Danco

Danco PlugAll 1-1/2 in. D Plastic Test and Seal Plug

MPN: 10839

$12.99
Charlotte Pipe Schedule 40 4 in. Hub X 4 in. D Hub PVC Cap
USA

Charlotte Pipe

Charlotte Pipe Schedule 40 4 in. Hub X 4 in. D Hub PVC Cap

MPN: PVC 00131 1200

$4.99
Charlotte Pipe 2 in. PVC Test Cap
USA

Charlotte Pipe

Charlotte Pipe 2 in. PVC Test Cap

MPN: PVC 00131 0800

$5.99
Sioux Chief 5 in. Weathered Round Cast Iron Floor Drain Strainer

Sioux Chief

Sioux Chief 5 in. Weathered Round Cast Iron Floor Drain Strainer

MPN: 866-S2I

$9.59
Sioux Chief Knock-Out 1-1/2 in. ABS Test Cap Knockout
USA

Sioux Chief

Sioux Chief Knock-Out 1-1/2 in. ABS Test Cap Knockout

MPN: 880-81PK

$4.99
Sioux Chief Knock-Out 4 in. ABS Test Cap Knockout
USA

Sioux Chief

Sioux Chief Knock-Out 4 in. ABS Test Cap Knockout

MPN: 880-84PK

$5.99
Sioux Chief Knock-Out 3 in. ABS Test Cap Knockout
USA

Sioux Chief

Sioux Chief Knock-Out 3 in. ABS Test Cap Knockout

MPN: 880-83PK

$4.99
Sioux Chief Test Titan 1-1/2 in. ABS/PVC Test Plug
USA

Sioux Chief

Sioux Chief Test Titan 1-1/2 in. ABS/PVC Test Plug

MPN: 882-1

$5.59
Sioux Chief Test Titan 3 in. ABS/PVC Test Plug
USA

Sioux Chief

Sioux Chief Test Titan 3 in. ABS/PVC Test Plug

MPN: 882-3

$8.59
Sioux Chief Knock-Out 2 in. ABS Test Cap Knockout
USA

Sioux Chief

Sioux Chief Knock-Out 2 in. ABS Test Cap Knockout

MPN: 880-82PK

$4.99
Sioux Chief Test Titan 2 in. ABS/PVC Test Plug
USA

Sioux Chief

Sioux Chief Test Titan 2 in. ABS/PVC Test Plug

MPN: 882-2

$7.59
Sioux Chief Test Titan 4 in. ABS/PVC Test Plug
USA

Sioux Chief

Sioux Chief Test Titan 4 in. ABS/PVC Test Plug

MPN: 882-4

$9.99
Sioux Chief Test Titan 4 in. ABS/PVC Test Plug
USA

Sioux Chief

Sioux Chief Test Titan 4 in. ABS/PVC Test Plug

MPN: 882-41

$15.99
Shop Local

Find these products at your local store.

Independent hardware retailers often carry the same products — sometimes at competitive prices. Every order helps keep them on the corner.

Why we built NHG →
For Pros & Businesses

Buying for a business? Get the pro treatment.

  • Net 30 terms
  • Volume & contract pricing
  • Gov & compliance ready
Apply for a Pro Account
Need a hand?

Real people. Real hardware experience.

Questions about fit, compatibility, or job requirements? Reach a real person — not a chatbot or contracted call center.

(866) 469-8556 Mon–Fri, 6 AM–5 PM PST Text (425) 515-2727 24/7 intake · next business day reply Send a message Routed to the right team based on your inquiry

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Shop Your Local Store Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide Direct to your door
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
100% Authorized & Genuine — Our Guarantee →
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare