The SNS uses a washable plastic bottle which hangs upside down and drips milk through 2 tubes into the baby's mouth. There are 3 sets of tubing in varying sizes to increase or decrease milk flow. LactAid uses disposable plastic bags which hang right-side-up. A tube comes out of the top so baby has to work against gravity to suck out the milk.
The SNS is great because it uses a plastic bottle which can be reused. It's sturdier so there's less risk of spilling milk if it's squeezed.
The LactAid is great for babies that need to develop a stronger suck. The fact that it works against gravity means less drips from the tubing. Since the bag is upright, it can be used while lying down.
The SNS tends to leak through the cap if screwed on too loosely or tightly. The tubes also need to be locked off when not in use to prevent gravity drip. Baby also does not need to work as hard since depending on how high you hold the bottle, some milk will drip into its mouth before they even begin sucking. (However, some babies do need this assistance, which is a reason many choose the SNS.)
LactAid bags are not reusable which can become pricey over time. They also require a system for filling which can not be done as quickly. If the bag is accidentally squeezed, it may "pop" and spill the milk.
This hack uses the washable plastic bottle from the SNS and the antigravity tubing from the LactAid to try to address the issues with both systems.
Step 1: Parts You Will Need
You may also want to have:
*LactAid bulb syringe, for cleaning.
*Funnel, for filling. (The one that comes with the LactAid kit has a filter for formula.)
Step 2: Seal Tubing With Flange
Step 3: Attach Cap to Tubing
Step 4: Attach Neck Cord
Step 5: Fill Bottle and Screw on Cap
Place wide end of tubing into the bottle and screw on cap.