I have a flexlite fl17. Is it much of an effort to replace it with this tank?

not sure. this tank has a quick clip you pull it up and out move the tank out and put in a new one 5 min top. if you don't have a quick clip this tank will have both sides.

Is it mandatory to install a pressure gauge on this tank?

Not on the tank necessarily, on the line that leads to and from the tank could be beneficial, in my opinion.

How many gallons actually held at 30 psi? is bladder replaceable? (previously asked. one seller says yes, one says no.

yes bladder replaceable. At 30 psi, the tank holds 0 gallons, if the bladder pressure is set at 30 psi. At 60 psi, the tank would hold approximately 14 gallons, if the bladder pressure was set at 30 psi...make sense?

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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WM-14 / WM0180QC Captive Air and Retention Fiberglass Tank, Quick Connect (47.1 gal / 178 LTR.)

Product ID: 29328108

⚡Quick Connect for fast setup

🌊Corrosion-proof fiberglass for coastal durability

🛠️Replaceable air cell for easy servicing

$3669.76

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Upgrade to the tank that works as hard as you do!

RUST FREE RELIABILITY - Fiberglass construction ensures zero corrosion, perfect for coastal homes
LIGHTWEIGHT POWERHOUSE - Less than half the weight of steel tanks for easier handling and installation
EFFORTLESS INSTALLATION - Quick Connect design slashes setup time and labor costs
MAINTENANCE MADE SIMPLE - Replaceable air cell means less downtime and hassle-free field servicing
FLEXIBLE PRESSURE CONTROL - Wider pressure differential offers superior system adaptability

The WM-14 / WM0180QC WellMate fiberglass tank delivers 47.1 gallons of corrosion-proof, maintenance-free water storage with quick connect technology for rapid installation. Its replaceable air cell and lightweight composite design make it the professional’s choice for efficient, durable, and flexible pressure tank solutions—especially in challenging coastal environments.

Specifications

ASIN	B016SEHGI0
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#196,343 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #59 in Hydraulic Tanks & Reservoirs
Customer Reviews	3.9 3.9 out of 5 stars (42)
Date First Available	October 17, 2015
Is Discontinued By Manufacturer	No
Item Weight	62 pounds
Manufacturer	Wellmate
Part Number	WM-14/WM0180QC

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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$3669.76

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Perfect platform for hard-to-find items. Delivery was prompt.

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