Are there sensor hookups to monitor fill level?

There are no obvious provisions for water level sensor though it may be possible to retrofit one into this tank.

Can this be used in the vertical position?

Yes it could be, the water line out the bottom would have to be connected before the tank was installed and the tank would have to be supported so that it is not resting on the fitting. On my installation the supplied clear plastic water line burst so I would recommend purchasing reinforces plastic water lines.

Is the large protruding outlet the fill access or vent? Meaning is the true capacity 20 gal or less because of the vent outlet?

The actual capacity is between 18 and 18.5 gallons. If you angle the tank slightly, You could just about get 19 gallons. Bear in mind that if you want this to vent properly you need a little bit of airspace at the top. The only way to get a full 20 gallons would be to make the tank a little oversized, and the manufacturer has not compensated for this. The vent is just slightly higher and smaller than the inlet port, meaning water will overflow from your fill tube before the vent, which is what you want.

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Barker Manufacturing Company 11916 20 Gal. Water Tank Kit , White

Product ID: 12636411

Details

Brand
BARKER
Capacity
20 Gallons
Color
White
Material
Alloy Steel
Product Dimensions
32"L x 12"W x

💧20 Gallon Capacity

🛠️Hose Barbed Inlets, No Thread Stripping

🛡️Food Grade, Rust & Corrosion Proof

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€ 786.54

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay hydrated, hassle-free — the ultimate water tank upgrade!

DURABLE HIGH IMPACT PLASTIC - Engineered to withstand tough conditions without cracking or leaking.
SPACIOUS 20 GALLON CAPACITY - Perfectly sized for extended trips or projects without constant refills.
RUST CORROSION PROOF DESIGN - Built to last in any environment, from trailers to outdoor setups.
THREADLESS HOSE BARBED INLETS - Simplifies installation and eliminates frustrating thread stripping.
FOOD GRADE POLYETHYLENE CONSTRUCTION - Ensures tasteless, odorless water safe for drinking and cooking.

The Barker Manufacturing 11916 Water Tank Kit offers a robust 20-gallon capacity in a compact 32x12x12 inch frame. Crafted from high-impact, food-grade polyethylene, it guarantees tasteless, odorless water storage that resists rust and corrosion. Featuring hose barbed inlets with no threads to strip, this tank ensures easy, leak-free installation—trusted by outdoor enthusiasts and professionals alike.

Specifications

ASIN	B002OW4ADA
Best Sellers Rank	#1,623,500 in Automotive ( See Top 100 in Automotive ) #406 in RV Freshwater Tanks & Inlets
Brand Name	BARKER
Capacity	20 Gallons
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (333)
Global Trade Identification Number	00755220119161
Included Components	Barker 11916 Plastic Water Tank - 20 Gallon
Item Dimensions L x W x H	32"L x 12"W x 12"H
Item Type Name	Barker 11916 Plastic Water Tank - 20 Gallon
Manufacturer	Barker
Manufacturer Part Number	11916
Material Type	Alloy Steel
Model Number	11916
Shape	Rectangular
UPC	755220119161
Unit Count	1.0 Count

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