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    How much is shipping?

    Shipping is based on the weight of your package and distance of delivery. Our standard shipping method is UPS Ground (unless you're in Alaska, Hawaii or another country) . Sorry, but we don't offer discounted or free shipping to any of our customers

    How long does shipping take?

    Usually 2-5 days once the order is paid for, depending on your distance from Austin, TX. Here is the UPS Ground transit time map:

    UPS Shipping Times

    Will the package have any references to 420 on it?

    All orders are sent in a plain box. Orders sent via USPS Mail simply show our return address on the label - no company name. Orders sent via UPS will have 420 Science in the return address section, but no other references.

    I gave the wrong shipping address!

    Email us as soon as you realize your mistake so we can correct it before your order ships. You can reply to your order confirmation email or email us at

    When will my order ship?

    Your sales rep will send a confirmation email with an estimated shipping time. Depending on the time of year, this could be anywhere from 2-3 business days to 10-14 business days. 

    I didn’t get my tracking number.

    We will email you a tracking number as soon as the order is fulfilled. It will go to the main email on your account, so make sure that's updated! Maybe it’s in your spam folder. 

    My tracking number doesn't work!

    We know you’re really excited to get your order and you want to see where it is every step of the way, you just need to have patience young grasshopper. The tracking information we send you can take up to 24 hours to process with the carrier. If you just got the tracking number it’s probably not going to work just yet, try it again in the morning.

    Click here to track a USPS Shipment.

    Click here to track a UPS shipment.

    Not sure what kind of tracking number you have? UPS tracking numbers usually start with 1Z. You can also put your tracking number right into Google and the only result will be the option to track your package.  

    Something in my order arrived broken.

    Please take a photo and then email it to Tell us what it was, especially if you got more than one item. Also be sure to tell us your name, invoice number and the email you used when you ordered. 


    What forms of payment do you accept?

    Visa, Mastercard, Discover, and American Express. COD is available with UPS orders, a charge of $12 will be added to your invoice.

    Do you take orders over the phone or via fax?

    Yes, your sales reps are available at 888-420-5277, just dial through to the Wholesale line.

    What shows up on my credit card or bank statement when I purchase something from you?

    It shows our legal name - 420 Science, LLC

    Do you offer discounts on large orders?

    Yes! Our High Volume Discounts can be applied to your order:

    10% off -$1,000

    15% off -$3,000

    20% off -$5,000

    Want to be a distributor of our products? Email us at

    420 JARS

    Do 420 Jars come with lids - what are they like?

    Yes! Every jar we sell comes with a lid. And yes, you can order replacement lids.

    The Classic Series of Pop Top 420 Jars have a glass lid with a plastic gasket ring to seal in the freshness.

    Clear and Amber Screw Top line of jars feature a black screw-top lid that provides an equally tight seal.

    Wide Mouth Jars come with a lid we designed ourselves! It’s food-grade silicone which offers double-wall protection to ensure maximum freshness.

    The UV Jars are fitted with a black screw top lid.

    Concentrate Jars also feature a black screw top lid.

    The Tincture Dropper lids have a glass pipette that reaches almost to the bottom of the bottle.

    The Latch Top Jars have a glass lid that hermetically seals on to the jar with the assistance of a rubber gasket.

    Our 1.5 and 2.5 Gallon Jars feature a brushed metal lid with a gasket seal.

    And finally, our 1 liter UV Jar has a glass on glass lid

    I need a replacement lid for my jar.

    You can purchase replacement lids. Not sure which size you need? Compare the dimensions of your jar to the dimensions we give on the product page for the jar you think you have. The silicone lid is the same for the small, medium and large Wide Mouth Jar.

    Why should I use a 420 Jar?

    Several reasons. Number 1 - Freshness. Herb isn't cheap; don't let the quality degrade by storing it in a plastic baggie. Number 2 - Presentation. 420 Jars look good and show you have a little style and a taste for the nicer things in life. Number 3 - Smell. 420 Jars help contain that infamous herb odor. Want to know more about storing your herb, check out this video from High Times.

    What's the biggest jar you sell?

    The 2.5 Gallon Jar is our very biggest and holds 1.25 lb. of herb. The Large Latch-Top Jar is our 3rd biggest and will hold up to four ounces of herb.

    Aren’t your jars just decorated with stickers?

    No way! The designs on our jars are a special glass decal which is applied by hand in our warehouse here in Austin, TX. The decal is then fired on to the jar in a kiln at over 1000 degrees. This permanently adheres the design to the jar for life so it will never chip or wear off. This also means the jar is dishwasher safe for when you’re ready to clean it.

    I want to suggest a jar logo

    We have amazing in house designers who are always working hard on new jar designs, but we’re always happy to find out what kind of new designs you’d like to see or check out something you’ve created and would like to share with us. Send it over to us at

    Can I get a custom jar made for my business?

    If you're interested in getting 144 or more jars with your own design, we can do that. We can usually work with you to put your design on a few different sizes or styles of jars. We need your artwork in a vector file format, lead time is about four weeks and we require a 50% deposit. If you’d like to find out more or are ready to move ahead with a custom order please email us at

    Can I buy a blank jar?

    Totally! Use this link to go buy yourself all of the blank jars your little heart desires.

    Are your jars smell proof?

    All of our jars are air tight. However, the very strong odor of some things just cannot be contained! Plus handling what’s inside the jar, then handling your jar can leave a residue on the jar that will give off odor. We do not recommend relying on our jars to conceal scent. We hope you’re able to use your jar in an environment where you do not have to worry about smell and can proudly display your stash in an aesthetically pleasing way. If concealing smell is your #1 priority, we recommend going with other containment options that guarantee scent concealment.  

    420 SCOPE

    Does the 420 Scope come with batteries? What kind?

    Sure does! It comes with 3 SG3 button batteries that are long-lasting and easy to replace. They're common watch batteries and available everywhere (places like Target, grocery stores, etc.) You can also purchase them from us right here.

    Why should I use a 420 Scope?

    So many reasons! One is to compare different types of herb; for the first time you'll actually be able to see the trichomes and know exactly what you're smoking. Growers like the 420 Scope because it allows them to check for mites and mold, plus know the optimal time to harvest. Then there's the fun factor - it's a cool gadget and lets you see herb like never before. Zoomed in at 60 to 100 times magnification, some of the views are just incredible.

    How do I use the 420 Scope?

    We recommend that you begin by setting the zoom at 60 and the focus all the way to the right. Put your specimen on a flat surface and turn on the 420 Scope's LED light. Then rest your 420 Scope directly on the herb and adjust the focus until the image is sharp.

    What makes the 420 Scope better than other microscopes?

    Several things. One is that the 420 Scope uses a bright-white LED light (instead of regular "yellowish" bulbs) and will illuminate your herb for optimal clarity. In addition, 60 to 100 times zoom is the best magnification to inspect the trichomes. And of course, its size - the 420 Scope is handheld and will fit in your pocket.

    How long is the cable on the USB Scope?

    The USB Scope has a 52" USB cable that connects to your computer. Power is supplied by the USB cable, so you don't have to worry about power outlets or other cables.

    Where can I download the software for the USB Scope.

    Right here.

    I can’t figure out how to use the USB Scope.

    Sorry you’re having trouble. Regretfully we do not offer technical support on the USB Scope. Have you installed the software? Restarted your computer and tried again? Have you tried it on a different computer? If it’s still not working for you, we’re happy to take it back. Please follow the instructions on this page for making returns.


    What is RezBlock?

    RezBlock is an all natural resin blocking water additive that prevents resin from sticking to your water pipe! Seriously, it keeps resin from sticking anywhere that the water is touching the glass in your water pipe!

    What’s in RezBlock?

    RezBlock is a proprietary blend of fruit extracts, vegetable glycerin, purified water, and citric acid.

    How do I use RezBlock?

    Starting with a clean water pipe is best. Fill your piece with water, add 4-6 drops depending on how much water your pipe uses and then take a dry pull to mix. Now use your piece as usual. Change the water as often as you would normally and watch your glass stay clean!


    My pipe arrived broken.

    Snap a photo and then contact us immediately! Any breakage needs to be reported within 48 hours of receipt. Email the photo to us at Include your name, invoice number and the email you used when you ordered.


    Will you send me some samples?

    Depending on the item, we can more than likely provide you with sample product. We regularly include demo products with your order for products that you may be interested in. In fact you will receive "Employee Demo Jars" with your order if you just ask! We have slightly flawed jars that did not pass our QA process and are happy to give them to your employees to try out.


    What if your products don't sell in my shop?

    We do offer a 100% satisfaction guarantee. All customers are different, while some shops sell the crap out of Pop-Tops Jars, your customers may like the UV Jars. Which means if you order from us and find the item isn’t right for your shop, we'll provide a shipping label for you to return it to us. We’ll credit your account the price of the item as soon as we get it back. 

    I want to sell your products in my store.

    Awesome! We want you to be our wholesale customer. Please use this form to send us your business info and we’ll get you a catalog right away!

    I’m a current wholesale customer, can I place my order online?

    YES! That is why you're on this website.

    I want to do a product review of your most awesome products.

    And we would love for you to do a review of our most awesome products. However, we can’t just send free stuff out to anyone who says pretty please and really promises they’ll post up a product review video. If you have a YouTube channel, please email us your name, a link to your YouTube channel and what products you’d like to review.

    What happened to 420 Preserve?

    We loved 420 Preserve too, but not enough people loved it. So we had to discontinue it dear customer.

    Where are you located?

    We’re in Austin, TX. Yes, it’s awesome here and yes we love music and no, please don’t move here. The traffic is bad enough as it is without you.

    Are you hiring?

    We might be. If we are you would find our job posting on local job boards. If you submitted your resume in response to a job posting and it was awesome enough to get in front of our eyeballs we would have emailed you and asked you to come in for an interview.

    I would like to make a suggestion.

    Great! Let’s hear it. We are always looking to make things better. Email us!

    Returns, Exchanges and Satisfaction Guarantee

    What is your satisfaction guarantee?

    420 Science guarantees that you'll LOVE every product we make. If there's something you don't LOVE, we want to know so we can offer you a replacement or give you a full refund. We 100% guarantee everything we make. 

    There are several products we sell through our website that aren't made by us. We can't offer all the same crazy awesome guarantees on these items, however we will accept returns on unused products.

    What is your return policy?

    Satisfaction Guaranteed. If you buy a 420 Science product and you're not completely satisfied, we’ll take it back for a full refund & we’ll pay the return shipping.

    What’s your exchange policy?

    We want you to have whatever item will make your customers happy. If what you got isn’t what you were expecting and you’d like something else instead, we’ll just exchange it for you. We’d rather you have exactly what you want. We’ll pay the shipping. Please keep in mind that we can only accept exchanges on unused products.