Iluka Seachange - 1 Litre - Natural Oceanic Oil & Body Fat Remover
Iluka Seachange - 1 Litre - Natural Oceanic Oil & Body Fat Remover is temporarily out of stock and will ship as soon as it's available.
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Don't Guess - Ask Us!
Not sure if it’s the right part? Send us a message and a photo of what you’re replacing, or what you need, and we’ll help make sure you get the right part the first time.
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Iluka Seachange - 1 Litre - Natural Oceanic Oil & Body Fat Remover
Iluka Seachange - 1 Litre - Natural Oceanic Oil & Body Fat Remover is temporarily out of stock and will ship as soon as it's available.
Iluka Seachange - 1 Litre - Natural Oceanic Oil & Body Fat Remover
Iluka Seachange comes straight from the sea. A totally natural product made from the shells of crustaceans. Seachange is designed to change the appearnce of your spa by clearing away the large amounts of oils, and body fats, that accumulate in the water due to the environment being one of a high temperature.
- Physically Stocked, unlike most "drop-shipping" websites.
- Shipped from VIC, NSW, WA, QLD
With Iluka, you'll enjoy a luxurious bathing experience that will soothe & nourish your skin & hair, relieve aches & pains, and may also be beneficial for cramps, nervous system, and blood pressure.
The Iluka range has sourced ingredients from the pristine waters of the Great Australian Bight on the Eyre Peninsula & they are produced without any chemical processes.
This range provides everytrhing you need to enjoy a healthy bathing experience, maintain crystal clear water, and minimise chemical usage.
- Iluka Start-up Kits - Bliss, Seachange, Purify, Brilliance, Klenz, Elevate, Descend, Hardup, 3 in 1 test strips, water sample bottle, 60ml Measuring Cup. We also recommend you add a 1kg Iluka Eliminate
- Iluka Bliss - Sea minerals
- Iluka Seachange - Oceanic ingredients
- Iluka Brilliance - Water Polisher
- Iluka Purify - Sanitiser
- Iluka Eliminate - Chlorine-Free Oxidiser
- Iluka Elevate - Total Alkalinity & pH Increaser
- Iluka Descend - pH Reducer
- Iluka Hardup - Calcium Hardness Increaser
- Iluka Klenz - Cartridge & Surface Cleaner
- Iluka Purge - Pipe & Biofilm Remover
- Iluka Sudsaway - Foam Remover
To the layperson, plumbing sizes and their names can be confusing due to the nominal sizes and naming conventions used.
This is not something we made up. Plumbers and manufacturers have used nominal (meaning ‘by name only’) sizing for decades.
Simply put, in plumbing, named sizes are often not the actual measurements of the pipe, fitting, or part. A PVC pipe called “50mm” or “2"” does not measure 50 mm anywhere. Instead, it follows nominal sizing, an internationally-standardised naming system.
Almost all fittings we use in the pool & spa industry use “pressure PVC” pipe & fittings. Do not confuse with “DWV” or other pipe & fittings and their names and sizes.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
To reiterate, these are nominal sizes and are designed to fit matching fittings — not to measure what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems and other plumbing areas so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate.
Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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