Product images: Amazon listings

MGGPAXXT 3/4" IPS Service Valve Kit Review

Name: MGGPAXXT 3/4" IPS Service Valve Kit
Brand: MGGPAXXT
SKU: B0FN323WZQ

7.3Good · out of 10Rated from the listing's specs, no buyer reviews yet

Written from the listing's specs, not from our own use · How we rate

If you're after 3/4" IPS isolation valves, the MGGPAXXT 3/4" IPS Service Valve Kit delivers, with a 150 PSI relief valve on top. It makes most sense for an install that skipped the service valves; we rate it 7.3/10 from its listing.

Price$44.99Price on Sep 30, 2026 · may have changed

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

Specifications

Brand	MGGPAXXT
Category	Service kits, valves & parts
Stated gas input	200,000 BTU/h
Connection	3/4" IPS
Relief valve	150 PSI, 200,000 BTU
Sold for	Rheem, Rinnai and EcoSmart
ASIN	B0FN323WZQ

Full listing title: Upgrade 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit, Isolation Valve with Pressure Relief Valve, Lead-Free Brass, Compatible with Rheem/Rinnai/EcoSmart/Navien/Noritz/Takagi/Bosch

Listing evidence

Stated gas input	200,000 BTU Listing text

Updated October 2026

Exact listing, ASIN B0FN323WZQ

Rating from a published formula

Compared with other valve kits

Two valve kits of the same size, closest to it on our rating, each with a dated price.

MGGPAXXT 3/4" IPS Service Valve Kit

7.3Good · out of 10$44.99 Price on Sep 30, 2026 · may have changed

Service kits, valves & parts

This product ↑

Iococee 3/4" IPS Isolation Valve Kit

7.2Good · out of 10$49.99 Price on Sep 30, 2026 · may have changed

Service kits, valves & parts

See the review ↗

HYDRO MASTER 3/4" IPS Service Valve Kit

7.2Good · out of 10$62.46 Price on Sep 30, 2026 · may have changed

Service kits, valves & parts

See the review ↗

3/4" IPS service valves, a 150 PSI relief valve

The connection size the listing states. It has to match the water connections on your heater, or the kit won't thread on; the manual lists them.

What it has going for it

What changes on flush day

Relief valve, 150 PSI, 200,000 BTU. Most codes want a relief valve on a water heater. Check that its BTU rating covers your unit's input.

Lead-free brass. Required for anything on the drinking-water side in the US.

Will it thread on?

The listing names 3/4" IPS connections, with a relief valve set at 150 PSI and a 600 WOG rating.

Find the size of your heater's hot and cold connections in its manual before you order: a mismatch means adapters, or a second trip to the store.

Great for you if…

Your tankless install has no service valves yet
You own a Rheem heater

Skip it if…

You don't own Rheem, Rinnai and EcoSmart equipment
You'd rather wait for buyer reviews: none are captured for this listing yet
Your heater's connections aren't 3/4" IPS: it won't thread on

Size, ratings and what's in the box

What the MGGPAXXT 3/4" IPS Service Valve Kit listing names:

3/4" IPS connections
Relief valve, 150 PSI, 200,000 BTU
600 WOG
Lead-free brass
CSA, ANSI or UPC named
Sold for Rheem, Rinnai and EcoSmart heaters

In the box, per the listing: A pressure relief valve, Isolation valves.

Hold the figures against your own heater and its manual before you order.

MGGPAXXT 3/4" IPS Service Valve Kit, view 3

Price and availability

$44.99 Price on Sep 30, 2026 · may have changed

On Sep 30, 2026, that price put it in the cheaper third of the 12 valve kits we have a recent price for.

The button opens the exact listing (ASIN B0FN323WZQ), where today's price, stock and seller apply.

MGGPAXXT 3/4" IPS Service Valve Kit, view 4

Our take

The verdict

What we'd buy the MGGPAXXT 3/4" IPS Service Valve Kit for is 3/4" IPS isolation valves, with a 150 PSI relief valve as a bonus. No buyer reviews yet, so this MGGPAXXT valve kit has to win you over on paper. The one thing that bugs us: the size has to match your heater's connections on both ends, or it simply won't thread on. We'd pick it if your tankless install has no service valves yet; otherwise, put it next to the BHVALCON 3/4" Valve Kit with Gas Lines first.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonAll service kits, valves & parts →

The one thing we'd check first

Before the MGGPAXXT 3/4" IPS Service Valve Kit ships, check your connections: it is a 3/4" IPS kit with a 150 PSI relief valve, and your heater's fittings have to match.

Before you buy

Your connections

Read the size stamped on the heater's water connections, or in the manual's spec table, and match it to the kit.

The relief valve

Rated 150 PSI and 200,000 BTU, per the listing. Its BTU rating has to cover your heater's input.

Who fits it

Soldered or threaded, it goes on the drinking-water side: a plumber if you are not comfortable. Our installation guide explains the rest.

How it compares

How the MGGPAXXT 3/4" IPS Service Valve Kit stacks up against the closest alternative, the BHVALCON 3/4" Valve Kit with Gas Lines.

Criterion	MGGPAXXT 3/4" IPS Service Valve Kit	BHVALCON 3/4" Valve Kit with Gas Lines
Our rating	7.3/10	7.4/10
Size	3/4" IPS	3/4" IPS
Relief valve	150 PSI	150 PSI
Valve rating	600 WOG	600 WOG
Lead-free	Stated	Stated

Pick the BHVALCON 3/4" Valve Kit with Gas Lines if you want our higher-rated option (7.4/10).

See the BHVALCON 3/4" Valve Kit with Gas Lines review →

The score in detail

How we rated it

Spec-based rating on a 4.5–8.5 scale: 4.5 + average of the 4 criteria × 0.4. Capped at 8.5 because no customer evidence is included.

Key specifications

7 / 10

Build, warranty & certifications

7 / 10

Listing documentation

7 / 10

Fit & compatibility

7 / 10

This product has no captured buyer-review record yet, so its rating comes from the documented listing alone: four criteria scored out of 10 (key specifications; build, warranty and certifications; listing documentation; fit and compatibility), placed on a 4.5–8.5 scale. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the MGGPAXXT 3/4" IPS Service Valve Kit any good?

We rate it 7.3/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.

What do you get with the MGGPAXXT 3/4" IPS Service Valve Kit?

Its listing states 3/4" IPS isolation valves and a 150 PSI relief valve. These are the seller's figures, not our measurements: whether it fits your exact heater is worth confirming first.

What should I check before ordering the MGGPAXXT 3/4" IPS Service Valve Kit?

Your connections: read the size stamped on the heater's water connections, or in the manual's spec table, and match it to the kit. The relief valve: rated 150 PSI and 200,000 BTU, per the listing. Its BTU rating has to cover your heater's input. Who fits it: soldered or threaded, it goes on the drinking-water side: a plumber if you are not comfortable. Our installation guide explains the rest.

Where can I buy the MGGPAXXT 3/4" IPS Service Valve Kit?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Have you used the MGGPAXXT 3/4" IPS Service Valve Kit yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula.

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