The last picture asks if i need a different size do you do custom sizes? what i would like is the profile of the 21g, but shorter such that its only10

The 21 gallon tank measures roughly 9" x 17" x 43" The 10 gallon tank measures roughly 10" x 15" x 21" With that being said the 21 and 10 are very similar in the length and width. The height is just scaled down but roughly 22" to reduce the overall volume. Thanks

What sizes are the threaded connections? It looks like theres 3 blue ones and one red one? Are those the only openings?

3 of the ports (blue ones) are 3/8 threaded NPT female Typically a threaded barb connector is screwed in to attach reinforced vinyl tubing with a hose clamp. A blue blue one with the 1.25 size (red one) should be on the high side of the tank when mounted and the blue one is attached to a vent tubing. The other two blue ones mounted at the bottom of that side. One has a tubing going to drain valve. The other is typically vinyl tubing to the input side of a 12VDC RV water pump. The large Red one) is a 1.25 inch. No threads. For use with a slip over flex tubing with a hose clamp for a gravity feed fill tube. Ideally this red port should be on the high side when you mount the tank.

If I’m using this as a gray water tank, how do I drain the water out of it? What equipment do I need for that?

The tank has many 1/2” threaded holes so you can mount it many ways. Use one of the 1/2” holes and add water line and off/on valve to it. We use Pex waterline from Hdepot. Or you could use clearctubing

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A.A 16 Gallon RV Fresh/Gray Water Tank 24" x 15" x 10" BPA Free (16 Gallon)

Product ID: 391786302

Details

Brand
A.A
Capacity
16 Gallons
Colour
Grey
Material
Polyethylene
Product dimensions
61L x 38.1W x

💧16 Gallon Capacity

🔧Multiple 3/8" NPT Connections

🛡️Seamless One-Piece Durability

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₩975256

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚐 Stay hydrated on the go with leak-proof confidence!

ENGINEERED FOR STABILITY - Place on level surfaces with secure bracing to prevent shifting during transit.
VERSATILE CONNECTION SETUP - Includes 1.25" fill inlet plus three 3/8" NPT fittings for flexible plumbing options.
SPACIOUS 16 GALLON CAPACITY - Ideal for extended RV trips or marine adventures without constant refills.
PREMIUM BPA FREE POLYETHYLENE - Safe for fresh water storage, corrosion and rust resistant for worry-free use.
SEAMLESS ROTATIONAL MOLDED DESIGN - No weak points or seams to burst, ensuring long-lasting reliability.

The A.A 16 Gallon RV Fresh/Gray Water Tank is a durable, BPA-free polyethylene tank designed for fresh or gray water storage in RVs, horse trailers, and marine applications. Measuring 24" x 15" x 10", it features a seamless one-piece construction to prevent leaks, includes multiple connection points for easy installation, and resists stains, corrosion, and rust. This non-pressurized tank requires venting and proper mounting to ensure optimal performance and longevity.

Specifications

ASIN	B07KGL26FY
Best Sellers Rank	#99,630 in Automotive ( See Top 100 in Automotive ) #19 in RV Freshwater Tanks & Inlets
Brand Name	A.A
Capacity	16 Gallons
Color	Grey
Item Dimensions L x W x H	61L x 38.1W x 25.4H centimeters
Manufacturer	Automotive Authority LLC
Manufacturer Part Number	FWT-RV
Material Type	Polyethylene (PE)
Shape	Rectangular
UPC	701231042325

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