Skip to content
Custom Watercooling Since 2002 · Same-day dispatch on in-stock parts before 2 PM MST
PRIMO
CHILL
Block Finder
Build planner
Saved
0
Account
Cart
0
Fittings
Rigid Fittings
1/2in OD
12 mm OD
14 mm OD
16 mm OD
Couplers
Rigid Fitting Bundles
Flexible Fittings
Metric
Flex SX (Imperial)
Barbs & Clamps
Tubing & Fitting Bundles
Rotaries & Extensions
Rotaries
Extensions
Splitters
Elbows
Multi Rotary
Plugs & Flow
Stops & Plugs
Drain Valves
Filters
Drains & Fillports
Pressure Relief & Testing
Flow Indicators
Temp Sensors
Replacement Parts & Tools
Rigid O-Rings & Caps
Flexible O-Rings & Caps
Rigid to Flex Inserts
Revolver Removal Tool
Allen Wrench
Fitting Pliers
Every fitting on one page
Pick your finish once, set how many of each, add them all to the cart in one go.
6+ · 10% off
12+ · 15% off
20+ · 20% off
Order Fittings →
Tubing
PETG
3/8 in ID x 1/2 in OD
1/2 in ID x 5/8 in OD
10 mm ID x 14 mm OD
12 mm ID x 16 mm OD
Acrylic
10 mm ID x 14 mm OD
12 mm ID x 16 mm OD
Glass & Metal
Rigid Glass
Rigid Metal
Flexible
Anti-Kink Coils
3/8 in ID x 1/2 in OD
3/8 in ID x 5/8 in OD
7/16 in ID x 5/8 in OD
1/2 in ID x 3/4 in OD
Tubing & Fitting Bundles
Tools & Kits
Rigid Tools
Flex Tools
Complete Kits: Tubing, Fittings, Bending
B-Stock
Flexible
PETG
Fluids
Ready to Use
Vue: Unique Visuals
Ice: Low Conductive
Opaque: Non-Transparent
Pure: Performance
Concentrates & DIY
True: Transparent
True: Non-Transparent
Base DI Water
Intensifier Dyes
Silver Coil
Liquid Utopia
Prep & Protect
Rad Clean
Cleaning Prep Kit: New System
Cleaning Prep Kit: Existing System
PrimoPrep: Show Prep
SysPrep: Everyday Prep
System Reboot: Loop Redo
System Soap
Filling Tools
Fill Syringes
Fill & Mix Bottles
Funnels & Fillports
Which fluid do I need?
Answer two questions. Get the fluid, how many bottles your loop takes, and the prep to run first.
2 questions
Bottle count
Prep included
Find my fluid →
Pumps & Reservoirs
Reservoirs
No Pump
D5 Pump Installed
DDC Pump Installed
D5 Pump Ready (add your own pump)
Mounting
End Caps
Internal Breaks
Replacement Tubes
Replacement Rings
Pumps
D5 Pumps
DDC Pumps
Pump Tops
Mounts & Accessories
Distribution Plates
Universal
Case Specific
Port Adjustments
Radiators & Fans
EXIMO SX - Custom Colors
Single Fan: 120 mm
Dual Fan: 240 / 280 mm
Triple Fan: 360 mm
Quad Fan: 480 mm
Bykski & Granzon
Single Fan: 80 / 120 / 140 mm
Dual Fan: 80 / 240 / 280 mm
Triple Fan: 80 / 360 mm
Quad Fan: 80 / 480 mm
Nine Fan: 1080 mm
External
AIO & External
80 mm AIO
120 mm AIO
240 mm AIO
360 mm AIO
480 mm AIO
Fans
120 mm x 25 mm
Covers
Screws
Grills
Accessories
Hardware Packs
M3 Screws
M4 Screws
Mounting Brackets
PrimoChill Emblem
Water Blocks
Intel CPU Blocks
Core Ultra 200S
12th / 13th / 14th Gen
10th / 11th Gen
6th to 9th Gen
HEDT X-Series
AMD CPU Blocks
Ryzen 7000 / 8000 / 9000
Ryzen 1000 to 5000
Threadripper
GPU NVIDIA
RTX 50x0
RTX 40x0
RTX 30x0
RTX 20x0
GTX 1660
GTX 1060 / 1070 / 1080
GPU AMD
RX 9000
RX 7000
RX 6000
RX 5000
Intel Arc
Data Center & Server
GPU Blocks
CPU Blocks
Fittings & Tubing
Rack Units
AIO Kits
Server CPU: Intel
Server CPU: AMD
Server GPU: AMD
Block Accessories
DDR / SSD Heatsinks
Temp Sensors
CPU Mounting
GPU Mounting
GPU Brackets
SLI / CF Bridge Blocks
Block Cables
Cases & Tools
Open Air & Test
Praxis WetBenches
Praxis WetBench Parts
Praxis WetBench SX Parts
Bykski & Granzon Chassis
Case Parts
Molding & Trim
Feet
Rivets
SSD / HDD Brackets
Lighting
5V A-RGB Strips & Control
12V RGB Strips & Control
Loose LEDs
Vandal Switches
Switch Cables
Install & Control
Flow & Filling
Noise & Dust
Thermal
Cut & Bend
Cutters
Bending Tools
Fitting Install & Removal
Bundles & Kits
Deals
Block Finder
Build planner
Fittings
Rigid Fittings
All rigid fittings
1/2in OD
12 mm OD
14 mm OD
16 mm OD
Couplers
Rigid Fitting Bundles
Flexible Fittings
All flexible fittings
Metric
Flex SX (Imperial)
Barbs & Clamps
Tubing & Fitting Bundles
Rotaries & Extensions
All rotaries & extensions
Rotaries
Extensions
Splitters
Elbows
Multi Rotary
Plugs & Flow
All plugs & flow
Stops & Plugs
Drain Valves
Filters
Drains & Fillports
Pressure Relief & Testing
Flow Indicators
Temp Sensors
Order Fittings
Replacement Parts & Tools
All replacement parts & tools
Rigid O-Rings & Caps
Flexible O-Rings & Caps
Rigid to Flex Inserts
Revolver Removal Tool
Allen Wrench
Fitting Pliers
All fittings
Tubing
PETG
All petg
3/8 in ID x 1/2 in OD
1/2 in ID x 5/8 in OD
10 mm ID x 14 mm OD
12 mm ID x 16 mm OD
Acrylic
All acrylic
10 mm ID x 14 mm OD
12 mm ID x 16 mm OD
Glass & Metal
All glass & metal
Rigid Glass
Rigid Metal
Flexible
All flexible
Anti-Kink Coils
3/8 in ID x 1/2 in OD
3/8 in ID x 5/8 in OD
7/16 in ID x 5/8 in OD
1/2 in ID x 3/4 in OD
Tubing & Fitting Bundles
Tools & Kits
All tools & kits
Rigid Tools
Flex Tools
Complete Kits: Tubing, Fittings, Bending
B-Stock
All b-stock
Flexible
PETG
All tubing
Fluids
Ready to Use
All ready to use
Vue: Unique Visuals
Ice: Low Conductive
Opaque: Non-Transparent
Pure: Performance
Concentrates & DIY
All concentrates & diy
True: Transparent
True: Non-Transparent
Base DI Water
Intensifier Dyes
Silver Coil
Liquid Utopia
Prep & Protect
All prep & protect
Rad Clean
Cleaning Prep Kit: New System
Cleaning Prep Kit: Existing System
PrimoPrep: Show Prep
SysPrep: Everyday Prep
System Reboot: Loop Redo
System Soap
Filling Tools
All filling tools
Fill Syringes
Fill & Mix Bottles
Funnels & Fillports
Which Fluid Do I Need?
All fluids
Pumps & Reservoirs
Reservoirs
All reservoirs
No Pump
D5 Pump Installed
DDC Pump Installed
D5 Pump Ready (add your own pump)
Mounting
End Caps
Internal Breaks
Replacement Tubes
Replacement Rings
Pumps
All pumps
D5 Pumps
DDC Pumps
Pump Tops
Mounts & Accessories
Distribution Plates
All distribution plates
Universal
Case Specific
Port Adjustments
All pumps & reservoirs
Radiators & Fans
EXIMO SX - Custom Colors
All eximo sx - custom colors
Single Fan: 120 mm
Dual Fan: 240 / 280 mm
Triple Fan: 360 mm
Quad Fan: 480 mm
Bykski & Granzon
All bykski & granzon
Single Fan: 80 / 120 / 140 mm
Dual Fan: 80 / 240 / 280 mm
Triple Fan: 80 / 360 mm
Quad Fan: 80 / 480 mm
Nine Fan: 1080 mm
External
AIO & External
All aio & external
80 mm AIO
120 mm AIO
240 mm AIO
360 mm AIO
480 mm AIO
Fans
All fans
120 mm x 25 mm
Covers
Screws
Grills
Accessories
All accessories
Hardware Packs
M3 Screws
M4 Screws
Mounting Brackets
PrimoChill Emblem
All radiators & fans
Water Blocks
Intel CPU Blocks
All intel cpu blocks
Core Ultra 200S
12th / 13th / 14th Gen
10th / 11th Gen
6th to 9th Gen
HEDT X-Series
AMD CPU Blocks
All amd cpu blocks
Ryzen 7000 / 8000 / 9000
Ryzen 1000 to 5000
Threadripper
GPU NVIDIA
All gpu nvidia
RTX 50x0
RTX 40x0
RTX 30x0
RTX 20x0
GTX 1660
GTX 1060 / 1070 / 1080
GPU AMD
All gpu amd
RX 9000
RX 7000
RX 6000
RX 5000
Intel Arc
Data Center & Server
All data center & server
GPU Blocks
CPU Blocks
Fittings & Tubing
Rack Units
AIO Kits
Server CPU: Intel
Server CPU: AMD
Server GPU: AMD
Block Accessories
All block accessories
DDR / SSD Heatsinks
Temp Sensors
CPU Mounting
GPU Mounting
GPU Brackets
SLI / CF Bridge Blocks
Block Cables
All water blocks
Cases & Tools
Open Air & Test
All open air & test
Praxis WetBenches
Praxis WetBench Parts
Praxis WetBench SX Parts
Bykski & Granzon Chassis
Case Parts
All case parts
Molding & Trim
Feet
Rivets
SSD / HDD Brackets
Lighting
All lighting
5V A-RGB Strips & Control
12V RGB Strips & Control
Loose LEDs
Vandal Switches
Switch Cables
Install & Control
All install & control
Flow & Filling
Noise & Dust
Thermal
Cut & Bend
Cutters
Bending Tools
Fitting Install & Removal
All cases & tools
Bundles & Kits
Deals
2 parts
Rigid To Flex Inserts
2
shown
Sort
Featured
Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old
RF-RSX3812-12
PrimoChill 1/2in. Rigid Fitting to Flex Tubing Insert - 12 Pack
5.0
5.0 out of 5 stars, 5 reviews
$11.99
In stock
RF-RSX3812-6
PrimoChill 1/2in. Rigid Fitting to Flex Tubing Insert - 6 Pack
5.0
5.0 out of 5 stars, 1 review
$6.99
In stock
Top
