Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
HACH Seal Quad Ring: 1989900, 1/4 in Overall Ht, 2 1/8 in Overall Wd - Water Quality Testing Accessories & Replacement Parts
HACHWater Quality Testing Accessories & Replacement Parts

HACH Seal Quad Ring: 1989900, 1/4 in Overall Ht, 2 1/8 in Overall Wd

The HACH Seal Quad Ring (part number 1989900) is a water quality testing accessory and replacement part. It measures 1/4 inch in overall height, 2 1/8 inches in overall width, and 3 1/2 inches in overall depth.

SKU 3G-OTH-374009

Brand
HACH
Item
Seal Quad Ring: 1989900, 1/4 in Overall Ht, 2 1/8 in Overall Wd
Category
Water Quality Testing Accessories & Replacement Parts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

HACH
Manufacturer Part Number
1989900
Overall Dp
3 1/2 in
Overall Ht
1/4 in
Overall Wd
2 1/8 in
Product Type
Seal Quad Ring
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

HACH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HACH Seal Quad Ring (part number 1989900) is a water quality testing accessory and replacement part. It measures 1/4 inch in overall height, 2 1/8 inches in overall width, and 3 1/2 inches in overall depth.

Frequently Asked Questions

What is the HACH Seal Quad Ring 1989900 used for?

The HACH Seal Quad Ring 1989900 is a replacement seal used in water quality testing equipment. It provides a leak-proof seal in sample cells, cuvettes, or instrument chambers to prevent contamination and ensure accurate readings in laboratory and field water analysis applications.

What are the specifications of the HACH Seal Quad Ring 1989900?

The HACH Seal Quad Ring 1989900 has a 1/4 inch overall height, 2 1/8 inch overall width, and 3 1/2 inch overall depth. It is a quad-ring seal designed for water quality testing accessories and replacement parts, manufactured by HACH under part number 1989900.

Where to buy the HACH Seal Quad Ring 1989900 worldwide?

3G Electric supplies the HACH Seal Quad Ring 1989900 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this HACH replacement seal.

How to install the HACH Seal Quad Ring 1989900?

To install the HACH Seal Quad Ring 1989900, first ensure the sealing surface is clean and free of debris. Gently press the quad ring into the groove without twisting or overstretching. Verify it sits evenly before reassembling the instrument. Follow your HACH equipment manual for torque specifications.

Used in

Common applications for HACH
Municipal water treatment — HACH PHC20101 IntelliCAL pH electrode for pH monitoring in distribution systems
Industrial wastewater — HACH Chloride Test Kit (2438600) for chlorine residual analysis in effluent
Laboratory analysis — HACH Buffer Standard Solution S11M005 for calibrating pH meters in quality control labs
Environmental field testing — HACH Chemical Test Strips (2793828) for rapid water quality screening
Process water monitoring — HACH Probe LZW5056.97.0002 for ORP measurement in cooling towers
Wastewater treatment — HACH Water Quality Test Kit (2182000) for nitrite monitoring in biological treatment processes

HACH Products

3G Electric supplies HACH water quality testing accessories & replacement parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
APPROVED VENDOR
APPROVED VENDOR
APPROVED VENDOR Water Seal Kit: Mfr Part # 2782, Buna, 20 mm Overall Dia. Key specifications — Compatible with Manufacturer Model Number: XW 20mm; Product Type: Water Seal Kit; Manufacturer Part Number: 2782.
APPROVED VENDOR
APPROVED VENDOR
APPROVED VENDOR Water Seal: Mfr Part # 2029, Viton, Compatible with Mfr Model # XT 15mm. Key specifications — Compatible with Manufacturer Model Number: XT 15mm; Product Type: Water Seal; Manufacturer Part Number: 2029.
APPROVED VENDOR V-Ring Seal: 2.835 in Inside Dia., 0.236 in Wd, 0.433 in Ht, Buna N, 60 Shore A (MPN 4PKG6). Key specifications — attr98890: APPROVED VENDOR; attr95562: -20° to 230°F; attr95560: Buna N; attr95561: 60 Shore A.
APPROVED VENDOR
APPROVED VENDOR V-Ring Seal: 2.835 in Inside Dia., 0.236 in Wd, 0.433 in Ht, Buna N, 60 Shore A (MPN 4PKG6). Key specifications — attr98890: APPROVED VENDOR; attr95562: -20° to 230°F; attr95560: Buna N; attr95561: 60 Shore A.
APPROVED VENDOR Rod Seal Kit: For 3/4 in Rod Dia., For 0.156 in Groove Wd, Buna N, Buna N (MPN 4PKH2). Key specifications — attr98888: APPROVED VENDOR; attr95534: (1) Each: Hytrel Backup Ring, 80 Durometer Buna U-Cup, 90 Durometer Buna Wiper, 70 Durometer Buna O-Ring; attr95530: Buna N; attr95531: Buna N; attr95532: 80 Shore A.
APPROVED VENDOR
APPROVED VENDOR Rod Seal Kit: For 3/4 in Rod Dia., For 0.156 in Groove Wd, Buna N, Buna N (MPN 4PKH2). Key specifications — attr98888: APPROVED VENDOR; attr95534: (1) Each: Hytrel Backup Ring, 80 Durometer Buna U-Cup, 90 Durometer Buna Wiper, 70 Durometer Buna O-Ring; attr95530: Buna N; attr95531: Buna N; attr95532: 80 Shore A.
APPROVED VENDOR
APPROVED VENDOR
APPROVED VENDOR Water Seal: Mfr Part # AR2644, Buna. Key specifications — Product Type: Water Seal; Manufacturer Part Number: AR2644.
APPROVED VENDOR V-Ring Seal: 1.772 in Inside Dia., 0.197 in Wd, 0.354 in Ht, Buna N, 60 Shore A (MPN 4PKG1). Key specifications — attr98890: APPROVED VENDOR; attr95562: -20° to 230°F; attr95560: Buna N; attr95561: 60 Shore A.
APPROVED VENDOR
APPROVED VENDOR V-Ring Seal: 1.772 in Inside Dia., 0.197 in Wd, 0.354 in Ht, Buna N, 60 Shore A (MPN 4PKG1). Key specifications — attr98890: APPROVED VENDOR; attr95562: -20° to 230°F; attr95560: Buna N; attr95561: 60 Shore A.

More from HACH

View all HACH parts →
HACH Holder and Clamp: LZW9155.99, 9 1/4 in Overall Ht, 12 in Overall Wd, 3 1/2 in Overall Dp. Key specifications — Product Type: Holder and Clamp; Manufacturer Part Number: LZW9155.99; Brand: HACH.
HACH
HACH Holder and Clamp: LZW9155.99, 9 1/4 in Overall Ht, 12 in Overall Wd, 3 1/2 in Overall Dp. Key specifications — Product Type: Holder and Clamp; Manufacturer Part Number: LZW9155.99; Brand: HACH.
HACH
HACH
HACH Battery Cover: 9386400, 1/2 in Overall Ht, 3 7/8 in Overall Wd, 4 in Overall Dp. Key specifications — Product Type: Battery Cover; Manufacturer Part Number: 9386400; Brand: HACH.
HACH Replacement Tray: 9377700, 1 3/8 in Overall Ht, 1 1/2 in Overall Wd, 4 5/8 in Overall Dp. Key specifications — Product Type: Replacement Tray; Manufacturer Part Number: 9377700; Brand: HACH.
HACH
HACH Replacement Tray: 9377700, 1 3/8 in Overall Ht, 1 1/2 in Overall Wd, 4 5/8 in Overall Dp. Key specifications — Product Type: Replacement Tray; Manufacturer Part Number: 9377700; Brand: HACH.
HACH
HACH
HACH Clip: 8980100, 1 in Overall Ht, 1 1/4 in Overall Wd, 1 in Overall Dp. Key specifications — Product Type: Clip; Manufacturer Part Number: 8980100; Brand: HACH.
HACH Color Coded Probe Clip: 5818400, 5/8 in Overall Ht, 2 1/8 in Overall Wd, 3 1/8 in Overall Dp. Key specifications — Product Type: Color Coded Probe Clip; Manufacturer Part Number: 5818400; Brand: HACH.
HACH
HACH Color Coded Probe Clip: 5818400, 5/8 in Overall Ht, 2 1/8 in Overall Wd, 3 1/8 in Overall Dp. Key specifications — Product Type: Color Coded Probe Clip; Manufacturer Part Number: 5818400; Brand: HACH.
HACH Oriflo Filter Apparatus: 4966000, Chlorine, 3 1/2 in Overall Ht, 3 1/2 in Overall Wd. Key specifications — Product Type: Oriflo Filter Apparatus; Manufacturer Part Number: 4966000; Brand: HACH; Test Parameters: Chlorine.
HACH
HACH Oriflo Filter Apparatus: 4966000, Chlorine, 3 1/2 in Overall Ht, 3 1/2 in Overall Wd. Key specifications — Product Type: Oriflo Filter Apparatus; Manufacturer Part Number: 4966000; Brand: HACH; Test Parameters: Chlorine.
HACH
HACH
HACH Cap and Instrument: 9386300, 1 7/8 in Overall Ht, 3 3/4 in Overall Wd, 3 3/8 in Overall Dp. Key specifications — Product Type: Cap and Instrument; Manufacturer Part Number: 9386300; Brand: HACH.
HACH pH Electrode Storage Bottle: 9260300, pH, 1 in Overall Ht, 2 in Overall Wd, 3 3/8 in Overall Dp. Key specifications — Product Type: pH Electrode Storage Bottle; Manufacturer Part Number: 9260300; Brand: HACH; Test Parameters: pH.
HACH
HACH pH Electrode Storage Bottle: 9260300, pH, 1 in Overall Ht, 2 in Overall Wd, 3 3/8 in Overall Dp. Key specifications — Product Type: pH Electrode Storage Bottle; Manufacturer Part Number: 9260300; Brand: HACH; Test Parameters: pH.