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
Extra Filter
Installation Type
Single hole
Item Weight
1.2 Pounds
Material
Metal
Package Information
Bag Tube

💧360° swivel for max reach

🔒NSF/ANSI lead-free certified

⚙️Quick-connect fittings included

81100CFA

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Description

💧 Elevate your kitchen with pure, stylish hydration—because your health deserves the best.

SLEEK MEETS SAFE - Brushed nickel finish blends modern style with durable, non-toxic materials.
UNIVERSAL COMPATIBILITY - Seamlessly pairs with top RO systems like APEC, iSpring, and Express Water.
PURE HYDRATION ZERO COMPROMISE - Enjoy crystal-clear, lead-free water with trusted NSF certification.
360 SWIVEL FOR ULTIMATE FLEXIBILITY - Reach every corner of your sink with smooth, full rotation convenience.
EFFORTLESS INSTALLATION INSTANT UPGRADE - Quick-connect fittings make setup stress-free and fast—no plumber needed.

The NSF-certified Water Filter Tec Reverse Osmosis Faucet delivers lead-free, purified water with a 360° swivel design and quick-connect fittings for easy installation. Compatible with major RO systems, its brushed nickel finish offers a sleek, durable upgrade to any kitchen sink, ensuring safer, healthier drinking water every day.

Specifications

ASIN	B0747M6HYN
Best Sellers Rank	#28,704 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #49 in Under-Sink & Countertop Filtration
Brand	Water Filter Tec
Brand Name	Water Filter Tec
Container Type	Bag,Tube
Customer Reviews	4.7 out of 5 stars 1,827 Reviews
Included Components	Extra 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	Metal
Material Type	Metal
Model Name	ASINB0747M6HYN
Model Number	ASINB0747M6HYN
Other Special Features of the Product	NSF certified
Package Information	Bag,Tube
Part Number	NZ-6501
Power Source	Manual (Water Pressure)
Product Dimensions	13.9"L x 5.2"W x 1"H
Purification Method	Reverse Osmosis
Smart Home Compatibility	Not Smart Home Compatible
Special Feature	NSF certified
Supported Water TDS Level Maximum (PPM)	2000
UPC	078776996391
Unit Count	1.0 Count

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81100CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews