---
product_id: 54064682
title: "- Silt Density Index Water-Testing Kit, SDI Portable Water Test Kit with On-site Carrying Case and 2 SDI Test Filters"
brand: "applied membranes inc."
price: "$1687.05"
currency: USD
in_stock: true
reviews_count: 6
category: "Applied Membranes Inc."
url: https://www.desertcart.us/products/54064682-silt-density-index-water-testing-kit-sdi-portable-water-test
store_origin: US
region: United States of America
---

# 0.45 micron precision filter All-in-one portable case 30+ PSI operational pressure - Silt Density Index Water-Testing Kit, SDI Portable Water Test Kit with On-site Carrying Case and 2 SDI Test Filters

**Brand:** applied membranes inc.
**Price:** $1687.05
**Availability:** ✅ In Stock

## Summary

> 💧 Protect your water, protect your future — test smarter, not harder!

## Quick Answers

- **What is this?** - Silt Density Index Water-Testing Kit, SDI Portable Water Test Kit with On-site Carrying Case and 2 SDI Test Filters by applied membranes inc.
- **How much does it cost?** $1687.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/54064682-silt-density-index-water-testing-kit-sdi-portable-water-test)

## Best For

- applied membranes inc. enthusiasts

## Why This Product

- Trusted applied membranes inc. brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Filtration:** Utilizes 0.45 micron filters to deliver industry-standard SDI results critical for RO system protection.
- • **Compact & Ready-to-Go:** Everything you need in one rugged carrying case—test anywhere, anytime with ease.
- • **Optimize RO Longevity:** Identify and prevent membrane fouling early to extend your reverse osmosis system’s lifespan.
- • **Pro-Level On-Site Testing:** Instantly measure silt density with a complete kit designed for field use—no lab delays.
- • **Trusted Quality & Compliance:** Manufactured in an ISO 9001:2015-certified US facility with ASTM-standard instructions included.

## Overview

The Applied Membranes Inc. Silt Density Index Water-Testing Kit is a professional-grade, portable solution for on-site measurement of silt density in water sources feeding reverse osmosis systems. Featuring 0.45 micron filters, a pressure gauge, and ASTM-compliant instructions, this compact kit delivers reliable SDI results within 20 minutes, helping prevent membrane damage and optimize filtration performance. Manufactured in the USA under ISO 9001:2015 standards, it’s the trusted choice for water treatment professionals seeking precision and convenience.

## Description

Reverse osmosis water filter systems are worthwhile investments for filtering contaminants out of tap water, but any reverse osmosis membrane can be damaged by water containing suspended solids and colloidal materials. The Silt Density Index (SDI) is the industry measurement of this fouling problem, and our portable water test kit for SDI levels makes quick, easy on-site water testing possible for microfiltration, ultrafiltration, and reverse osmosis systems. For optimal performance, and to ensure the long-lasting health and functionality of your reverse osmosis membranes, test the SDI before every installation.This professional kit gives you everything you need to test the SDI of your water. To test, a 0.45-micron filter is exposed to water under pressure, and filtration rates are calculated from that. In most cases, an SDI of less than 5 is considered acceptable for reverse osmosis systems. A minimum of 30 PSI water pressure is required to use this kit.Our professional kit features quick-connect in/out connections built right into the case and includes a filter holder, a pressure gauge, a pressure regulator, a ball valve, a graduated cylinder, a thermometer, tubing, filter tweezers, and ASTM SDI test instructions to guide kit use. It also includes 2 SDI test filters, but we recommend an additional filter pack as well (sold separately).For over 40 years, Applied Membranes has been an industry leader in commercial and residential water-filtration systems, introducing the most cutting-edge water-purification technology in compact, accessible systems everyone can use. Clean water is our mission, and our customer support team is happy to assist you with any questions. Our ISO 9001:2015-quality certified facility is located in California, USA. Enjoy pure water at home every day with our premium water treatment systems and accessories.

Review: Best SDI kit on the market - This test kit is the ultimate total package for doing SDI. It’s compact and has everything you need. I would highly recommend.
Review: You will need to buy the filters separately. - I like the compact case with everything I need to do an SDI test.

## Features

- PROTECT YOUR REVERSE OSMOSIS SYSTEM: High levels of silt and other solids in the water source you’re connecting your RO filtration system to can cause damage over time. This portable water-quality test kit includes 2 SDI filter tests to check water on-site and aid in determining pretreatment requirements.
- PRO-LEVEL ON-SITE TESTING IN 1 CASE: Our water-testing kit for water treatment and system feed water comes with everything you need to measure silt density on-site in 1 case, including two 0.45 micron filters. An SDI of less than 5 is acceptable for reverse osmosis systems.
- INSTANT TEST RESULTS: Follow the included simple step-by-step instructions to obtain immediate test results on-site without sending water to a lab for analysis. The test takes approximately 20 minutes, including setup.
- READY TO USE: This kit includes ASTM instructions for measuring silt density index to help you get accurate results. A minimum of 30 PSI water pressure is required to use this kit. We also sell Pump Assembly Kits to use with lower pressures.
- CLEAN WATER IS OUR MISSION: Applied Membranes has been bringing clean water to facilities worldwide for over 40 years. AMI Silt Density Index Testers are made in the United States in our ISO 9001:2015-quality certified facilities.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00D3OO3RQ |
| Best Sellers Rank | #232,010 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #70 in Water Purification System Accessories |
| Date First Available | November 10, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.97 pounds |
| Item model number | SDI-2000 |
| Manufacturer | APPLIED MEMBRANES INC. |
| Product Dimensions | 11 x 11 x 6 inches |

## Images

![- Silt Density Index Water-Testing Kit, SDI Portable Water Test Kit with On-site Carrying Case and 2 SDI Test Filters - Image 1](https://m.media-amazon.com/images/I/71BNLOk9+uL.jpg)

## Questions & Answers

**Q: How many units comes on the kit?**
A: There is one box with 100 filters in it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best SDI kit on the market
*by M***N on July 17, 2020*

This test kit is the ultimate total package for doing SDI. It’s compact and has everything you need. I would highly recommend.

### ⭐⭐⭐⭐⭐ You will need to buy the filters separately.
*by S***E on March 1, 2020*

I like the compact case with everything I need to do an SDI test.

### ⭐⭐⭐⭐⭐ Nice peace of equipment
*by A***H on July 16, 2020*

Works well for operators to use. Very easy and sturdy.

## Frequently Bought Together

- Applied Membranes Inc. Silt Density Index Water-Testing Kit, SDI Portable Water Test Kit with On-site Carrying Case and 2 SDI Test Filters
- Filters for SDI Testing | SDI-045 Pack of 100 | For use in SDI-2000 SDI Kit and Simple SDI | 0.45M 47mm Hydrophilic Membrane SDI Filters | Applied Membranes, Inc. SDI-045…
- APPLIED MEMBRANES INC | Booster Pump Add-On Accessory for SDI Test Kit | for Testing Silt Density Index with Feed Water Less Than 30 PSI | 120v, 60HZ for USA | Applied Membranes, Inc. SDI-PU

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-10*