Will it work for a primo 3 gallon screw cap bottle?

If it’s a standard 3 gallon bottle with a long neck, it should. It is versatile and will fit most bottles of the same shape. However, it does not seal, like a cap. It gently lays on the top. If tipped over, all would come out.

Do I need to purchase the water bottle caps with hole in the middle for the pump to work?

Where can I purchase bottle caps?

I bought the 5 gallon jug. Do I need to buy new tops everytime I fill with water at the store?

My tops have an opening that is just perfect for the stream of water from the refill machines. I did not have to remove and replace them. Yay! Make sure you pull the plug up and out unless you don’t mind it floating in your bottle. https://www.amazon.com/dp/B00CN00BUE/ref=cm_sw_r_cp_awdb_btf_t1_oerIFbX4YWDX9

what is the size of the tube (diameter), where can I buy a similar diameter tube but much longer (several feet)?

The tube diameter is no more than about 2 centimeters. You can probably buy a similar tube size at a Home Depot/Lowes or any hardware store really.

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ExcMark Auto Bottled Water Pump with Volume Control Water Dispenser Rechargeable Gallon Water Bottle Jug Dispenser Pump.

Product ID: 299928100

Details

Brand
ExcMark
Capacity
1 liters
Colour
Silver
Material
Acrylonitrile
Product dimensions
27.1D x 35.5W

💧Auto-stop volume control (300ml/500ml/1L)

🔋30+ days battery life

🔌USB rechargeable in 3-4 hours

Description

💧 Pump up your hydration game—smart, sleek, and always ready!

LONG LASTING POWER - Enjoy over a month of cordless convenience on a single charge—stay hydrated anywhere, anytime.
RISK FREE RELIABILITY - Backed by 6 months free replacement and 24/7 customer support—because your hydration deserves hassle-free service.
WHISPER QUIET OPERATION - Discreet, BPA-free pumping that keeps your environment calm and your water safe.
PRECISION HYDRATION CONTROL - Pump exactly the water you need with one-touch volume presets—no spills, no waste.
UNIVERSAL FIT COMPACT DESIGN - Seamlessly fits 1-5 gallon bottles with a sleek, space-saving profile perfect for home, office, or outdoor adventures.

The ExcMark Auto Bottled Water Pump is a rechargeable, wireless water dispenser designed for 1-5 gallon bottles. Featuring easy one-button volume control with auto-stop at 300ml, 500ml, or 1L, it offers over 30 days of use per charge. Its BPA-free, compact ABS design ensures safe, quiet operation ideal for kitchens, offices, camping, and emergencies. USB rechargeable in 3-4 hours, it combines convenience with universal compatibility and reliable customer support.

Specifications

ASIN	B07SPZYNNT
Access Location	Bottom
Best Sellers Rank	#19,149 in Kitchen ( See Top 100 in Kitchen ) #16 in Electric Hot Water Dispensers
Brand Name	ExcMark
Capacity	1 liters
Color	Silver
Customer Reviews	4.5 4.5 out of 5 stars (3,189)
Included Components	Micro USB Cable
Installation Type	Freestanding
Item Dimensions D x W x H	27.1D x 35.5W x 16.8H centimeters
Item Display Weight	0.5 Pounds
Item Weight	0.23 Kilograms
Manufacturer	ExcMark
Manufacturer Part Number	B07SPZYNNT
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Number of settings	2
Power Source	Battery Powered
Style Name	Pump
UPC	606314934439
Unit Count	1 Count
Upper Temperature Rating	205 Degrees Fahrenheit
Wattage	4 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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