Quick Answer
Lotion pump sizes are defined by the bottle neck finish, such as 24/410 or 28/410. The number refers to the neck diameter and thread type. Choosing the right size depends on bottle compatibility, product type, and required dosage.
Key Facts About Lotion Pump Sizes
- Common sizes: 20/410, 24/410, 28/410
- First number = neck diameter (mm)
- Second number = thread type
- 24/410 and 28/410 are the most widely used standards
- Size must match the bottle exactly
Introduction
Selecting the correct lotion pump size is a critical step in cosmetic packaging. A mismatch between pump and bottle can lead to leakage, poor sealing, or dispensing issues.
In this guide, you will learn:
- What lotion pump sizes mean
- Differences between 24/410 and 28/410
- How to choose the right size
- Common mistakes to avoid
What Do Lotion Pump Sizes Mean?
Lotion pump sizes are typically written in the format:
👉 XX/YYY (e.g., 24/410)
Explanation:
- 24 = neck diameter (in mm)
- 410 = thread finish (height and thread style)
This standard ensures compatibility between the pump and bottle.
Common Lotion Pump Sizes
1. 20/410
- Smaller bottles
- Travel-size products
2. 24/410 (Most Popular)
Used for:
- Skincare products
- Liquid soap
- Medium-size bottles
Features: Strong versatility and wide application.
3. 28/410
Used for:
- Shampoo
- Body wash
- Larger containers
Features: Higher traffic, suitable for high-usage products
24/410 vs 28/410: Key Differences
| Feature | 24/410 | 28/410 |
|---|---|---|
| Neck Diameter | 24mm | 28mm |
| Typical Use | Skincare, soap | Shampoo, body wash |
| Dosage Output | Lower | Higher |
| Bottle Size | Small to medium | Medium to large |
| User Experience | Controlled dispensing | Faster dispensing |
How to Choose the Right Lotion Pump Size (Step-by-Step)
Step 1: Match Bottle Neck Size
👉The most crucial step
- Bottle = 24mm → It must be used with 24/410.
- Bottle = 28mm → It must be used with 28/410
Step 2: Consider Product Type
- Skincare → 24/410
- Shampoo / body wash → 28/410
Step 3: Check Dosage Requirement
Typical ranges:
- 1cc–2cc → skincare
- 2cc–4cc → shampoo
👉 arge size usually supports greater output.
Step 4: Evaluate User Experience
- Precise control → Small size
- Quick use → Large size
Step 5: Confirm Compatibility
In many practical applications, it is recommended to conduct tests to ensure:
- Sealing property
- Fluid stability
- No leakage
Common Problems and How to Avoid Them
1. Pump Does Not Fit Bottle
Reason: Incompatible sizes
👉 olution: Confirm neck size
2. Leakage Issues
Reason：
- Misalignment of threads
- Poor sealing
3. Incorrect Dosage
Reason：
- Output specifications do not match.
- The viscosity of the products is different.
👉 In many cases, the problem stems from improper selection rather than the quality of the product.
Bottle and Pump Matching Tips (高价值模块🔥)
- Always confirm bottle neck finish (24/410 or 28/410)
- Check dip tube length (should match bottle height)
- Choose output based on product viscosity
- Test with real product before mass production
Case Example (Anonymized)
Problem: A brand used a 24/410 pump for a large shampoo bottle and experienced slow dispensing.
Method: Switched to a 28/410 pump with higher output.
Result: Under typical usage conditions, dispensing speed improved and user experience became more convenient.
Expert Tip
Based on practical packaging experience, pump size selection is often more about matching the bottle and usage scenario than simply choosing a standard size. Early compatibility testing can help avoid costly adjustments later.
FAQ
What does 24/410 mean?
It refers to a 24mm neck diameter and 410 thread type.
What is the difference between 24/410 and 28/410?
28/410 has a larger diameter and typically higher output.
Can I use 24/410 pump on 28mm bottle?
No, the sizes must match exactly.
Which size is better for shampoo?
28/410 is commonly used for shampoo products.
How do I choose the right pump size?
Match bottle size, product type, and dosage requirement.
Related Articles
👉 What Is a Cosmetic Pump
👉 Types of Cosmetic Pumps
👉 Airless Pump vs Lotion Pump
Conclusion
Choosing the correct lotion pump size is essential for proper packaging performance. The right size ensures compatibility, stable dispensing, and a better user experience.
In many practical applications, matching pump size with bottle and product requirements early can help avoid issues during production and use.
Need Help Choosing the Right Pump Size?
If you are unsure which pump size is suitable for your product, we can help you evaluate:
- Pump size selection
- Output specifications
- Bottle compatibility
- Custom solutions