can you use a non air gap faucet on a air gap system? And how do you tell what type of system you have?

You need to look under the water faucet, and if it has a hose that runs to the drain pipe you have air gap system. To run a non air gap faucet you need to add a check valve on the drain line that goes from the filtration system to the sink drain pipe. I actually running my system this way

Are replacement cartridges available?

There are no cartridges sold with this product. Depending on the r/o unit you are installing there are any number of filtration cartridges available. It all depends on the system you are installing.

Is this air gap or non air gap?

This faucet is non-air gap. if you need air gap type please find another ASIN : B07H2XPQRD https://www.amazon.com/Reverse-Water-Filtration-Advanced-Drinking/dp/B07H2XPQRD/ref=mp_s_a_1_4?keywords=air+gap+faucet+for+reverse+osmosis+system&qid=1563634812&s=gateway&sprefix=air+gap+&sr=8-4

Can you tell me the name of the tool the video uses to tighten the bolt?

Some plumbers use a pipe-like tool they call a Basin Wrench, as it fits in the tight spot between the sink basin and the back wall. Tip: If the countertop is removable and the sink is light-weight, just flip the counter over and work on it upside down, then re-install.

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NSF Certification Lead-Free Water Filtration Reverse Osmosis Faucet (Brushed Nickel) Advanced RO Tap for Drinking, Kitchen Sink Cooking, Cleaning | Safe, Healthier

Product ID: 54785212

Details

Brand
Water Filter
Included Components
Water Filter
Installation Type
Single hole
Item Weight
1.2 Pounds
Material
Metal
Package Information
Bag Tube

💧360° swivel for versatile use

🔧Quick-connect fittings for easy install

🛡️NSF/ANSI certified lead-free safety

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Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your hydration game with style and safety!

EFFORTLESS INSTALLATION - Includes dual quick-connect fittings (1/4" & 3/8") for stress-free setup compatible with major RO systems.
SLEEK 360 SWIVEL DESIGN - Smooth-turning handle and full rotation for maximum kitchen sink flexibility and style.
UNIVERSAL RO COMPATIBILITY - Seamlessly integrates with top RO brands like APEC, iSpring, and Express Water for ultimate versatility.
PURE WATER PURE CONFIDENCE - NSF/ANSI certified lead-free faucet ensures your drinking water is safe and toxin-free.
TIMELESS BRUSHED NICKEL FINISH - Elevate your kitchen aesthetics with a modern, durable finish that complements any decor.

This NSF/ANSI certified lead-free reverse osmosis faucet delivers crisp, clean water with a smooth 360° swivel design. Engineered for easy installation, it includes dual quick-connect fittings compatible with major RO systems like APEC and iSpring. Finished in elegant brushed nickel, it combines health-conscious filtration with modern kitchen style, ensuring safer drinking water and effortless use every day.

Specifications

ASIN	B0747M6HYN
Best Sellers Rank	#23,944 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #36 in Under-Sink & Countertop Filtration
Brand Name	Water Filter Tec
Container Type	Bag,Tube
Customer Reviews	4.7 4.7 out of 5 stars (1,815)
Included Components	Water Filter
Installation Type	Single hole
Item Dimensions L x W x H	13.9"L x 5.2"W x 1"H
Item Weight	1.2 Pounds
Manufacturer	Water United Development Ltd.
Material Type	Metal
Model Name	ASINB0747M6HYN
Model Number	ASINB0747M6HYN
Other Special Features of the Product	NSF certified
Part Number	NZ-6501
Power Source	Manual (Water Pressure)
Purification Method	Reverse Osmosis
Smart Home Compatibility	Not Smart Home Compatible
Supported Water TDS Level Maximum (PPM)	2000
UPC	078776996391
Unit Count	1.0 Count

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