In stock · Ships in 1–2 business days

Plant watering that runs while you’re away.

A drip cap that turns a 1L or 2L bottle into slow-release irrigation for houseplants, patios, and seedlings.

A clear plastic bottle inverted into a houseplant with a CapTool Drip cap pressed into the soil, slowly watering the plant

How it works

Fill. Snap. Invert.

1

Fill the bottle

Use any common 28mm beverage bottle. 1L or 2L works best for sustained watering.

2

Snap on the drip cap

The cap fits the same bottle range as Rinse. Same gasket family, different flow.

3

Invert into the soil

The bottle empties slowly over several hours, depending on flow setting and soil density.

The cap

A precision drip opening, not a leak.

CapTool Drip cap on a clear plastic 1L bottle inverted over a small modern houseplant

In context

On the bottle

Fits common 28mm necks. Same gasket family as Rinse.

CapTool Drip cap, translucent sky blue with mint green accent, shown in product detail

Detail

The cap

Food-contact silicone, BPA-free, dishwasher safe.

A row of terracotta pots with young seedlings on a sunny patio bench, two of them watered by inverted bottles with CapTool Drip caps pressed into the soil

Patio, balcony, seedling tray

Set it up before the weekend. Come back to soil that’s still moist.

One bottle per pot keeps young plants on a steady schedule without daily attention. The flow is slow on purpose. The soil takes water as it needs it, and the bottle empties over hours, not minutes. When the bottle’s empty, refill it. That’s the routine.

Works on terracotta, plastic nursery pots, raised beds, and balcony planters. Use a 1L bottle for small pots, 2L for larger.

Specs

The technical details.

  • Material: Food-contact silicone, BPA-free
  • Fit: Many common 28mm beverage bottles
  • Best with: 1L and 2L bottles for sustained flow
  • Care: Dishwasher safe, top rack
  • Color: Clear blue with mint accent
  • What ships: 4 caps, demo QR
See full bottle list
For water and water-soluble fertilizerYes
Not for hot liquids×
Not for pesticides or hazardous chemicals×
Test fit before useRequired
Adult supervision around kidsRecommended
Inspect before each useRecommended