Spa Parts Made Simple

Name: 1/8" MPT Brass Threaded Plug for Hot Tub Heater Tube - Pressure Switch Port Cap
Brand: SpaShopper
SKU: HTP47-555-1021
Price: 4.98 USD
Availability: InStock

Pumps, heaters, control boards, and replacement parts — without the confusion.

Shop Spa Parts

Shop by Category

Spa Pumps and Parts Spa Manifold Kits Heaters and Related Parts Pump Unions and Related Parts Most Popular Filters Diverter Valves & Parts

✔️ Real OEM & compatible spa parts

✔️ Fast shipping from the USA

✔️ Knowledgeable support when you need it

✔️ Trusted by spa owners since 2015

Not sure which part fits your spa?

We make it easy to find the right replacement part — without guessing.

Find your spa model
Match the part number
Order with confidence

Get Help Finding a Part

SpaShopper makes it easy to find quality hot tub and spa replacement parts without the frustration. From spa pumps and heaters to control boards, jets, filters, and plumbing components, we stock parts that fit a wide range of popular spa brands. Whether you’re fixing a heating issue, replacing a worn pump, or upgrading aging components, SpaShopper helps you get your spa running again quickly and confidently.

Heater Tube Threaded Plug, 1/8"mpt, Brass

1/8" MPT Brass Threaded Plug for Hot Tub Heater Tube - Pressure Switch Port Cap

SpaShopper

MSRP: $7.98

$4.98

(You save $3.00 )

(No reviews yet) Write a Review

SKU:: HTP47-555-1021
UPC:

Current Stock:

Quantity:

Adding to cart… The item has been added

Description

Solid brass plug designed to seal 1/8" MPT (Male Pipe Thread) openings commonly located on hot tub heater tubes. This threaded cap fits ports identical in size to pressure switch connections, measuring approximately 3/8" in diameter across the opening or plug threads. Perfect for blocking unused heater tube holes on spa systems. Installation Note: Proper sealing requires teflon pipe tape for a watertight seal.