Skip to content

Free shipping on most orders over $89!

Brands Contact Us

Country/Region

United States (USD $)

Search

Product type

All
Accessories
Air Filters

Need Help?

Call (864) 284-1801

Track Order Cart

Cart Log in Login

Menu

Systems
Replacement Filters & Cartridges
Components
Application
Water Problems
Blog
About Us
Contact Us
Clearance

Need Help?

Call (864) 284-1801

Home
Watts AquaLock/SeaTech

Watts AquaLock/SeaTech

Filters

Sort by:

Featured
Most relevant
Best selling

Compare

View as List Grid

FiltersFilter & Sort

Applied Filters

Clear all

Availability

In stock (221)
Out of stock (53)

Clear

Type

Adapters (73)
Cap (End Stop) (8)
Check Valves (4)
Collet Covers (9)
Control Valves (4)
Couplings (25)
Filter Wrench (1)
Fitting Locking Clips (13)
Garden Hose Adaptor (2)
Kits & Tools (4)
Labels (2)
Manifold Fittings (7)
Manifold Plates & Rails (3)
O-Rings (6)
PEX Tubing (6)
Pipe & Tubing Cutters (1)
Plug Fittings (6)
Pump Accessories | Fitting (2)
Pump Accessories | Quad Port Fittings (2)
Shut-Off Valves (38)
Supercoil Deckcoil (4)
Supercoil Hose (8)
Tee Fittings (25)
Tube Clamps & Clips (4)
Tube Insert/PEX Pipe Stiffeners (4)
Tube Sleeve (2)
Uniflex Hose (4)

Clear

Brand

Watts AquaLock/SeaTech (267)

Clear

Fitting Connection Size

3/4" GHT x 1/2" NPS (1)
1/2" NPT x 3/4" GHT (1)
1-1/8" Stem OD (2)
5/8" Stem OD x 1/2" Barb ID (2)
5/8" Stem OD x 1/2" NPS (1)
5/8" Stem OD x 1/2" NPTF (1)
1/2" Tube OD (6)
5/8" Tube OD (10)
7/8" Tube OD (6)
1-1/8" Tube OD (9)
1/4" Tube OD x 1/2" NPS (1)
1/4" Tube OD x 5/8" Stem OD (1)
1/4" Tube OD x 15mm Stem OD (1)
3/8" Tube OD x 1/2" NPS (1)
1/2" Tube OD x 3/8" NPTF (1)
1/2" Tube OD x 1/2" NPS (4)
1/2" Tube OD x 1/2" NPTF (1)
1/2" Tube OD x 1/2" Stem OD (1)
1/2" Tube OD x 1/2" Tube OD (1)
1/2" Tube OD x 5/8" Stem OD (1)
1/2" Tube OD x 3/4" NPTF (1)
5/8" Tube OD x 1/4" Tube OD (2)
5/8" Tube OD x 3/8" NPTF (2)
5/8" Tube OD x 3/8" Tube OD (2)
5/8" Tube OD x 1/2" NPTF (5)
5/8" Tube OD x 1/2" NPS (4)
5/8" Tube OD x 1/2" Tube OD (4)
5/8" Tube OD x 1/2" Barb ID (1)
5/8" Tube OD x 5/8" Stem OD (3)
5/8" Tube OD x 5/8" Tube OD (2)
5/8" Tube OD x 3/4" NPTF (5)
5/8" Tube OD x 3/4" NPS (4)
5/8" Tube OD x 3/4" GHT (3)
5/8" Tube OD x 15mm Tube OD (2)
7/8" Tube OD x 1/2" Barb ID (1)
7/8" Tube OD x 5/8" Tube OD (3)
15mm Stem OD (1)
22mm Stem OD (1)
15mm Stem OD x 1/4" NPTF (1)
15mm Stem OD x 1/2" NPTF (1)
22mm Stem OD x 3/4" NPTF (1)
22mm Stem OD x 1" NPTF (1)
15mm Tube OD (9)
22mm Tube OD (9)
15mm Tube OD x 3/8" COMP (2)
15mm Tube OD x 3/8" Barb ID (1)
15mm Tube OD x 1/2" NPTF (4)
15mm Tube OD x 1/2" NPS (2)
15mm Tube OD x 1/2" Barb ID (1)
15mm Tube OD x 5/8" Tube OD (1)
15mm Tube OD x 3/4" NPS (2)
15mm Tube OD x 3/4" GHT (1)
15mm Tube OD x 15mm Stem OD (3)
15mm Tube OD x 15mm Tube OD (2)
15mm Tube OD x 22mm Stem OD (1)
22mm Tube OD x 3/4" NPTF (2)
22mm Tube OD x 3/4" Barb ID (1)
22mm Tube OD x 3/4" NPS (1)
22mm Tube OD x 7/8" Tube OD (1)
22mm Tube OD x 22mm Stem OD (2)
22mm Tube OD x 22mm Tube OD (1)
1-1/8" Tube OD x 1" Barb ID (1)
1-1/8" Tube OD x 1" NPS (1)
1-1/8" Tube OD x 1" NPTF (2)
1-1/8" Tube OD x 1-1/8" Stem OD (1)
1-1/8" Tube OD x 1-1/8" Stem OD x 1-1/8" Stem OD (2)
1-1/8" Tube OD x 1-1/8" Stem OD x 1-1/8" Tube OD (1)
1-1/8" Tube OD x 1-1/8" Stem OD x 5/8" Tube OD (1)
1-1/8" Tube OD x 1-1/8" Tube OD (1)
1-1/8" Tube OD x 1-1/8" Tube OD x 1-1/8" Tube OD (1)
1-1/8" Tube OD x 1-1/8" Tube OD x 15mm Tube OD (1)
1-1/8" Tube OD x 1-1/8" Tube OD x 5/8" Tube OD (1)
1-1/8" Tube OD x 1-1/8" Tube OD x 7/8" Tube OD (1)
1-1/8" Tube OD x 15mm Stem OD x 15mm Tube OD (2)
1-1/8" Tube OD x 28mm Tube OD (1)
1-1/8" Tube OD x 5/8" Tube OD (1)
1-1/8" Tube OD x 5/8" Tube OD x 1-1/8" Stem OD (1)
1-1/8" Tube OD x 7/8" Stem OD (1)
1-1/8" Tube OD x 7/8" Tube OD (1)
1/2" NPS x 1/2" NPTF x 1/2" Tube OD (1)
1/2" Tube OD x 1/2" Stem OD x 1/2" Tube OD (1)
1/2" Tube OD x 1/2" Tube OD x 1/2" Tube OD (2)
1/4" Tube OD x 1/4" Tube OD x 1/4" Tube OD (1)
15mm Tube OD x 1-1/8" Tube OD (1)
15mm Tube OD x 15mm Stem OD x 15mm Tube OD (1)
15mm Tube OD x 15mm Tube OD x 1/2" NPS (1)
15mm Tube OD x 15mm Tube OD x 1/4" Tube OD (1)
15mm Tube OD x 15mm Tube OD x 15mm Tube OD (1)
22mm Tube OD x 15mm Tube OD x 15mm Tube OD (1)
22mm Tube OD x 22mm Stem OD x 22mm Tube OD (1)
22mm Tube OD x 22mm Tube OD x 15mm Tube OD (1)
22mm Tube OD x 22mm Tube OD x 22mm Tube OD (1)
5/8" Tube OD x 1-1/8" Stem OD (1)
5/8" Tube OD x 1-1/8" Stem OD x 1-1/8" Tube OD (1)
5/8" Tube OD x 5/8" Stem OD x 1/4" Tube OD (1)
5/8" Tube OD x 5/8" Stem OD x 5/8" Tube OD (2)
5/8" Tube OD x 5/8" Tube OD x 1/2" NPT (1)
5/8" Tube OD x 5/8" Tube OD x 1/4" Tube OD (2)
5/8" Tube OD x 5/8" Tube OD x 5/8" Stem OD (1)
5/8" Tube OD x 5/8" Tube OD x 5/8" Tube OD (3)

Clear

Push-In Size

3/8" CTS (1)
1/2" CTS (1)
3/8" ID (1)
1/2" ID (4)
3/4" ID (1)
1" ID (5)
1/4" OD (5)
3/8" OD (2)
1/2" OD (17)
5/8" OD (59)
7/8" OD (19)
1" OD (2)
1-1/8" OD (30)
15mm OD (41)
22mm OD (22)

Clear

Stem Size

1/2" OD (2)
5/8" OD (13)
7/8" OD (5)
1-1/8" OD (8)
15mm OD (11)
22mm OD (6)

Clear

Barb Size

3/8" (1)
1/2" (5)
3/4" (1)
1" (1)

Clear

Body Material

Polysulfone (31)
Polyurethane (8)

Clear

Seal / O-Ring Material

EPDM (180)

Clear

Valve Type

Electric Stem Valve (4)
Stop Valve (2)

Clear

Application

Marine (17)
Potable Water (6)
Water (58)
Water Supply (2)

Clear

Color / Finish

Almond (1)
Biscuit (1)
Black (67)
Blue (12)
Brass (9)
Off-White (2)
Red (5)
White (149)

Clear

Shape

90 (10)
Elbow (34)
Manifold (3)
Straight (131)
Tee (37)
Wye (2)

Clear

Series

81902811 (1)
81902812 (1)
81903041 (1)
24 Series (16)
35 Series (118)
Accessories (7)
Metric (74)

Clear

Sort by:

Featured
Most relevant
Best selling

Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Return End - 1 CTS Stem x 1 CTS

Regular price From $32.25

Very low stock

Part #: 3585-18

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Single Stem Body Left - 1 CTS x 1/2 CTS

4.5

Regular price From $36.75

Part #: 3591-1810

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Male Connector - 1/2 CTS x 3/4 MGHT

Regular price From $6.26

Low stock

Part #: 3501-1014

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Dual Union Body - 1 CTS x 15mm

Regular price From $62.21

Low stock

Part #: 1183-1815

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Reducing Union - 3/4 CTS x 1/2 CTS

Regular price From $9.49

Part #: 3515R-1410

Save up to 10% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Stem Elbow - 3/8 CTS Stem x 3/8 CTS

Regular price From $8.50

Part #: 3518-08

Save up to 10% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Male Connector - 3/8 CTS x 3/8 NPT

Regular price $4.45

Part #: 3501-0806
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Pipe Insert / Tube Support Liner - 3/4" CTS PEX

Regular price From $1.95

Part #: 3560-14

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Single Union Body - 1 CTS x 1/2 CTS

5.0

Regular price From $42.50

Very low stock

Part #: 3589-1810

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Reducing Stem - 1 CTS Stem x 15mm

Regular price From $11.76

Part #: 1114-1815

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Female Connector - 1 CTS x 1 NPS

Regular price From $8.80

Part #: 3510-1816

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Reducing Tee - 1/2 CTS Stem x 1/2 CTS x 1/4 OD Branch

Regular price From $21.50

Part #: 3533R-1004

Save up to 10% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - 3545-18 End stop - 1 CTS

Regular price From $11.31

Part #: 3545-18

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Reducing Stem - 22mm Stem x 15mm

Regular price From $9.72

Part #: 1614-1522

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - End Stop - 22mm

Regular price From $8.51

Part #: 1645-22

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Manifold Wrench - 1" CTS

5.0

Regular price $21.45

Very low stock

Part #: 351192-18
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Reducing Stem - 1 CTS Stem x 3/4 CTS

Regular price From $10.02

Part #: 3514-1814

Save up to 4% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Reducing Valve Type 39 - 1/2 CTS x 1/4 OD

Regular price From $13.99

Part #: 3539R-1004

Save up to 5% with bulk pricing
Compare

Sold Out

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - 2415-10 Union Connector Fitting 1/2 CTS

5.0

Regular price From $9.91

Sold out

Part #: 2415-10

Save up to 5% with bulk pricing
Compare

Sold Out

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - 2417-10 Union Elbow Fitting 1/2 CTS

Regular price From $3.05

Sold out

Part #: 2417-10

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Male Thread Elbow - 1 CTS X 1 NPT

5.0

Regular price From $23.50

Part #: 3519-1816

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Reducing Branch Tee - 3/4 CTS x 3/4 CTS x 1/2 CTS Branch

Regular price From $17.32

Part #: 3524R-1410

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Dual Side Mounting Kit - 1 CTS

Regular price From $14.96

Low stock

Part #: 1180-18

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - End Plug Black - 1 CTS

Regular price From $10.19

Part #: 1146-18

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Hose Barb Fitting - 3/4 CTS x 3/4 ID Barb

Regular price From $10.94

Part #: 3513-1412

Save up to 5% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Stackable Reducing Stem - 3/4 CTS Stem x 1/2 CTS

Regular price From $5.25

Part #: 3514-1410

Save up to 4% with bulk pricing
Compare

Watts AquaLock/SeaTech
Watts AquaLock/SeaTech - Electronic Stem Valve - 15mm 24vdc

Regular price From $319.57

Very low stock

Part #: 12104-0415-24

Save up to 5% with bulk pricing

Showing 162 of 267

Want to learn more?

Your cart

Your cart is empty

Subtotal:$0.00 USD

Loading...

M - F 8:00am to 7:00pm EST

Call: (864) 284-1801

Toll Free: (877) 930-7295

2299 Ridge Road Greenville, SC 29607

3195 W Professional Circle Suite 200 - Salt Lake City, UT 84104

Facebook
YouTube
Instagram
LinkedIn

Shop

Water Filtration & Treatment Systems
Pumps & Motors
Fittings & Valves
Filter Housings & Components
Filters & Media
Tubing & Hoses
Food & Beverage Filtration Systems
Clearance
Parts & Accessories
Under-Sink & Countertop Water Filters
Brands
View All Categories

Help

Track My Order
Get a Quote
Shipping
Bulk Pricing
Returns
Contact Us

Info

About Us
neo™ Brand
Cleanroom Facility
Blog
Careers
Local Pickup
Industries
Certifications & Quality Standards

Payment methods accepted

Country/Region

United States (USD $)

© 2026 Fresh Water Systems - All Rights Reserved

Terms and Conditions
Privacy Policy
Accessibility

Compare /3

Loading...

Loading...

Choose options

Item added to your cart.

View cart