NSI

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When purchasing a product, price is the consumer's primary concern. At present, NSI has 306 products for sale. NSI products range in price from $2.55 to $220.78, and the average price of all the products is about $39.78.

We found that most of the NSI products are manufactured by NSi Industries, NSI Industries, and USA. The manufacturers provide NSI with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase NSI products on Amazon.com. The brand holds an average rating of 4.5, testifying to its excellent reputation.

NSI Best Sellers

Last Updated: Jan 9, 2026

NSI Non-Metallic Cable Splice, 12-14 AWG Wire Range, for 3 Conductor Cable with Ground (Nms-3)

Butt Terminals

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Non-metallic cable splice box for use with three-conductor cables with conductors from #12 to #14 AWG and a grounding wire

Splice box internally structured to eliminate the need for junction boxes, covers, fittings, and connectors

Suitable for use in residential branch circuits, manufactured housing and pre-fabricated building structures

Clear cover for the ability to inspect cable splices

UL and cUL Listed

NSI IPLD250-3 3 250 MCM, 6 AWG Insulated Multi-Cable Connector Block, Either Side Wire Entry, 3 x 1 x 2 inches, Black

Electrical Wire

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Dual rated for use with Copper and/or aluminum cables, not recommended for fine-stranded, flexible wire

Rated: 600 volts, Number of ports - 3

Wire alignment: either side

Wire range: 250 MCM - 6 AWG

Nsi Attract Acid-free Gel Bond Nail Primer 0.5floz

Nail Polish

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NSI Attraction Nail Liquid - 32oz / 946ml

Acrylic Liquids

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Does not contain MMA (Methyl Methacrylate), which has been restricted for use in the nail industry.

NSI Attraction Nail Acrylic Liquid 8.1 Floz 240ml

Nail Polish

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nsi Attraction Acrylic Nail Liquid is the most highly-advanced monomer on the market today offering quicker, easier pick up and unsurpassed strength and flexibility. - Size 32 fl oz / 946 ml

Acrylic Liquids

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Attraction Nail Liquid is the most highly-advanced monomer on the market today offering quicker, easier pick up and unsurpassed strength and flexibility. The UV shield prevents yellowing and it evaporates slowly to reduce odors.

Create natural-looking, thin nail enhancements with exceptional adhesion and unsurpassed strength & flexibility.

Draws the powder to the brush for quicker & easier bead pick-up. Non-yellowing formula uses a UV Shield to block out UV exposure to retain color clarity and keep enhancements looking new.

Never crystallizes, therefore reducing time even in the most frigid regions.

Size 32 fl oz / 946 ml

NSI Attraction Acrylic Nail Powder – Totally Clear – 1 Pack

Acrylic Powders

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Acrylic design for wearability and flow with a spring back action and feel, unique to our industry.

Yellowing free and fully colour stable.

Powder is pigment enriched and can adjust to the nail tech for each client.

Delivers exceptional adhesion, strength and flexibility.

NSI Attraction Nail Powder - Purely Pink Masque - 1.4oz / 40g

Acrylic Powders

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NSI Attraction Nail Powder - Purely Pink Masque - 1.4oz / 40g

NSI WW-716-WT WarriorWrap General 7 mil Vinyl Electrical Tape, 3/4" Width, 60' Length, White

Electrical Tape

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Provides secure protection withstanding all weather conditions

Good adhesion, strength and elongation for indoor/outdoor use

Flame retardant and resistant to harsh UV, abrasion and corrosion

Country of origin: China

NSI Attraction Totally Clear Powder 40g - NSI7522 by NSI

Acrylic Powders

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NSi Industries TES-2 Voltage Tester, 120 or 240 VAC, Neon

Voltage Testers

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Dual Neon Light Indicates Presence Of Ac Voltage Of Either 120 Or 240 Vic

Double Insulated Housing and Test Leads

Pocket Clip

Country of origin: United States

NSI Attraction Nail Acrylic Sampler Kit

Manicure & Pedicure Sets

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NSI Attraction Nail Acrylic Sampler Kit

Empowers the nail tech to create captivating enhancements, effortlessly. Highly advance tri-monomer technology and exclusive polymer blend gives the system its unique feel and spring back action, while delivering exceptional adhesion, unsurpessed strength and flexibility.

NSI EWZ120 Series EWZ Tork Multipurpose Control Astronomic 7 Day Time Switch, 120-277 VAC Input Supply, 1 Channel, SPDT Output Dry Contact, #8 - #16 AWG

Timer Switches

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Automatic on/off control for individualized daily operation

Digital 7-day, 24-hour display with 20 on/off cycles each day, one-minute minimum cycle, manual override switch

Automatic compensation for daylight saving time, leap year, and sunrise and sunset variation based on Earth's latitude

120-277 VAC input voltage for multiple uses

Noryl plastic alloy indoor/outdoor enclosure with locking hasp

nsi Attraction Nail Powder - Pure White - 40g / 1.4oz

Acrylic Powders

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NSI Industries Polaris Black IT-4 Insulated Multi-Tap Connector- 2-Port Single-Sided Entry for 4-14 AWG Wire Range - Dry Locations - Dual-rated cooper and/or aluminum - 1.18-inch width, 1.38-inch height, 1.12-inch length - Hex size 1/8-inch - 12 Pack

Screw Terminals

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COMFORTABLE HANDLING/GRIP: Contractor-friendly ergonomic design with smooth edges and rounded corners provide a secure grip for maximum torque

FAST INSTALLATION: Only a hex key and torque wrench needed; no need for extra tools and insulating tape

HIGH-QUALITY CONSTRUCTION: Insulated with high dielectric strength plastisol for increased chemical and abrasion protection; 6061-T6 aluminum alloy construction

RELIABLE: Removable plugs ensure secure entry port closure while preventing debris from entering connector

WIRE TYPE: Dual-rated for use with copper and/or aluminum Class B or C building code class conductors

NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC,Neon

Voltage Testers

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Neon Light Indicates Presence Of Ac Voltage From 80-250 Vic

Double Insulated Housing and Test Leads

Pocket Clip

Country of origin: United States

NSI ESGTS-2 Easy Splice Gel Tap Splice Kits with Connector, 14 - #2 AWG Wire Range, 1.63" Width, 1.06" Height, 2.75" Length

Butt Terminals

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Kit Provides A Fast And Simple Method For Connecting, Insulating, And Environmentally Sealing Low- Voltage Splices

The Splice Kit Is Designed For Underground And Overhead Environments And Is Useful For Street Lighting Applications

The Splice Kit'S Dual-Rated Mechanical Connector Splices A Wide Range Of Cables, Including Copper And Aluminum

The Connector'S Four Port Design Allows Maximum Inventory Flexibility

NSI ESGS-4/0 Easy-Splice in-Line Gel Splice Kit with Connector, 2-4/0 AWG Wire Range

Butt Terminals

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The Easy-Splice in-line gel splice kit provides a sealed splice for underground, buried and overhead applications

This in-line closure offers a fast and simple method for splicing, insulating and environmentally sealing low voltage cable splices

Simply install the connector on a copper or aluminum cable, place it in the closure, and snap closed

Qualified to ANSI C119.1 -1986 for underground splicing

Sealing and corrosion protection provided by sealant gel

NSI Glaze N Go UV Gel Sealant 1/2 oz by NSI

Nail Polish

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NSI FAQs

Is NSI Legit?

Yes, NSI is a legitmate brand on Amazon. After conducting a comprehensive analysis of 2,282 customer reviews for NSI products on Amazon, we have determined its average rating. Offering great value and satisfying quality, NSI has achieved a respectable rating of 4.5 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from NSI on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more NSI products?

If you're interested in NSI and want to find more NSI products, you can follow the steps below:

Go back to FindThisBest's homepage.
Type NSI in the search box and hit Enter to see the search results.
Find and click the correct NSI to go to the new page.
Select the products you want in the NSI buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more NSI products.

How does findthisbest choose the top NSI products?

We analyze millions of NSI products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase NSI products via FindThisBest?

Go to the NSI page.
Select the product you want in the NSI buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product NSI Non-Metallic Cable Splice, 12-14 AWG Wire Rang..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the NSI products?

Most of the NSI products are produced by NSi Industries, NSI Industries, and USA. The manufacturers provide NSI with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the NSI products, helping you make more informed buying decisions. We recommend best choices of the products from the NSI brand, helping you make better shopping choices with less time and energy.

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